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Quarterly Cash Dividend Q1 2023 [Member] Targa Pipeline Partners L P Targa Pipeline Partners L P [Member] A provider of natural gas gathering, processing and treating services primarily in the Anadarko, Arkoma and Permian Basins located in the southwestern and mid-continent regions of the United States and in the Eagle Ford Shale play in south Texas. Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] O 2024 Q3 dividends. O 2024 Q3 Dividends [Member] Quarterly Cash Dividend Q3 2024 [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Total Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Current liabilities Current liabilities Senior Unsecured 4.200% Notes due February 2033 [Member] Senior Unsecured Notes Due February2033 [Member] Senior unsecured notes due February 2033. Portion at Fair Value Measurement [Member] [Default] Fair Value Disclosure Item Amounts [Default] Portion at Fair Value Measurement [Member] Loss Contingencies [Table] Settlements reclassified to revenues, related income tax Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, Tax Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Revenue recognized Deferred revenue recognized related to gas gathering and processing agreement Contract with Customer, Liability, Revenue Recognized Ownership interest in assets Percentage Of Ownership Interest In Assets Percentage of ownership interest in assets. Face amount of notes redeemed Debt Instrument, Repurchased Face Amount Restricted Stock Units In Lieu Of Bonus [Member] Restricted Stock Units In Lieu Of Bonus [Member] Restricted stock units in lieu of bonus. Investments in Unconsolidated Affiliates Equity Method Investments and Joint Ventures Disclosure [Text Block] Whistler. Whistler [Member] Whistler [Member] State State Deferred Tax Balance For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date related to state income taxes, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. Finite-Lived Intangible Asset, Expected Amortization, Year Three 2027 Number of compressor station. Number of compressor station Amount expected to reclassify commodity hedge related deferred losses to earnings before income taxes Price Risk Cash Flow Hedge Gain Loss Expected To Reclassify Into Earnings Price risk cash flow hedge gain loss expected to reclassify into earnings. Lease cost Lease, Cost [Abstract] Proceeds from sale of equity-method investment Proceeds from Sale of Equity Method Investments Existing TRGP Senior Revolving Credit Facility due February 2027 [Member] Existing TRGP senior revolving credit facility [Member] Existing TRGP senior revolving credit facility. Corporate and Eliminations [Member] Corporate Non Segment And Inter Segment Elimination [Member] Corporate non segment and intersegment elimination. Repayments of accounts receivable securitization facility Repayments of Accounts Receivable Securitization Thereafter Finance Lease, Liability, to be Paid, after Year Five Payments of Debt Issuance Costs Costs incurred in connection with financing arrangements Costs incurred in connection with financing arrangements Non-Credit-Enhanced Senior Unsecured Long-Term Debt Ratings [Member] Non Credit Enhanced Senior Unsecured Long Term Debt Ratings [Member] Non-credit-enhanced senior unsecured long-term debt ratings. Windfall Tax Benefit [Member] Windfall Tax Benefit [Member] Windfall tax benefit. Preferred stock, dividend Preferred stock dividends per share. Preferred stock dividends per share Treasury stock, shares (in shares) Treasury Stock, Common, Shares Cover [Abstract] Senior unsecured notes four pointtwo zero zero percent due two thousand twenty seven. Senior Unsecured Notes Four PointTwo Zero Zero Percent Due Two Thousand Twenty Seven [Member] Senior Unsecured 4.200% Notes due 2027 [Member] Fixed Price Contract [Member] Fixed-Price Contract [Member] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Earnings Per Share, Basic, Total Net income (loss) per common share - basic Earnings Per Share, Basic Increase (decrease) in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Upfront compensation Upfront Compensation Upfront compensation. Four Point Two Five Percent Senior Unsecured Notes Due2023 [Member] Partnership 4.25% Senior Unsecured Notes Due 2023. 4.250% Senior Notes due 2023 [Member] Other [Member] Midstream Services Other [Member] Other midstream services fees not included in the other categories. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Cost to other non-current assets Other long-term assets Principal payments of finance leases Financing cash flows for finance leases Finance Lease, Principal Payments Year Three [Member] Derivatives expiring in three years in the future. Year 2026 [Member] Distributions payable date Distribution Made to Limited Partner, Distribution Date Document Annual Report Document Annual Report Consolidation Items Consolidation Items [Domain] Blackcomb [Member] Blackcomb. Blackcomb [Member] Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Common stock annualized dividends, per share Common stock, annualized dividends, per share, declared Common stock, annualized dividends, per share, declared. Swaps [Member] Swap [Member] Stock compensation expense Share-Based Payment Arrangement, Expense TRGP revolver and commercial paper program. T R G P Revolver and Commercial Paper Program [Member] TRGP Revolver and Commercial Paper Program [Member] Distributions to Targa Resources Corp. Distribution To Parent The other distribution in cash to parent that is recorded as a decrease in equity. Weighted-average discount rates for finance leases Finance Lease, Weighted Average Discount Rate, Percent Total debt obligations Long-Term Debt Risk management activities Unrealized Gain (Loss) on Derivatives Deemed dividends - redemption of Series A Preferred Stock Accretion of deemed dividends on Series A Preferred Deemed Preferred Stock Dividend Accretion Of Beneficial Conversion Feature The amount of Deemed preferred stock dividend accretion of beneficial conversion feature. Thereafter Contractual Obligation, to be Paid, after Year Five Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Retained earnings (deficit) Retained Earnings (Accumulated Deficit) Plan Name Plan Name [Axis] 2017 ATM Program [Member] Two Thousand Seventeen A T M Program [Member] Two thousand seventeen ATM program. Segment Reporting [Abstract] Current assets: Assets, Current [Abstract] Dividends paid to common and Series A Preferred shareholders Amount of Common Dividends Paid or To Be Paid Payments of Ordinary Dividends, Common Stock Finite-Lived Intangible Assets [Roll Forward] Percentage of contributions made in cash Defined Contribution Plan Percentage Of Contribution Made In Cash Percentage of employer's contribution made to a defined contribution plan in cash. Senior Unsecured Notes Due March2030 [Member] Senior unsecured 5½% notes due March 2030. Senior Unsecured of 5.500% Senior Notes due March 2030 [Member] Deferred Tax Liabilities, Net, Total Net deferred tax asset (liability) Deferred Tax Liabilities, Net Preferred stock redemption premium percentage Preferred stock redemption premium percentage. Preferred stock redemption premium percentage Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Net cash provided by (used in) operating activities Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Purcha Purchase price Product and Service Product and Service [Domain] Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Estimated fair value of derivative instruments, net asset Derivative, Fair Value, Net, Total Estimated fair value of derivative instruments, net liability Derivative, Fair Value, Net Estimated fair value of derivative instruments, net liability Remaining lease terms Lessee, Operating Lease, Term of Contract Debt Instrument [Line Items] Debt Instrument [Line Items] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Cost to property, plant and equipment Property, plant and equipment, net Revenues [Member] Sales [Member] Tax Period Tax Period [Domain] Debt Instrument, Term Term loan facility, term Operating Loss Carryforwards, Total Total net operating loss carryforwards Operating Loss Carryforwards Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, plant and equipment, net Property, plant and equipment, net Property, Plant and Equipment, Net Lessee, Operating Lease, Liability, to be Paid, Year Four 2028 Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Joint Ventures [Member] Corporate Joint Venture [Member] Derivative Activities - Non-hedge [Member] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Vesting Vesting [Axis] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Counterparties with Offsetting Positions or Collateral [Member] Counterparties With Offsetting Positions Or Collateral [Member] Counterparties with offsetting positions or collateral. Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] 2019 Compensation Cycle [Member] Two Thousand Nineteen Compensation [Member] Two thousand nineteen compensation. Series A Preferred 9.5% Stock, $1,000 per share liquidation preference (1,200,000 shares authorized, zero shares issued and outstanding as of December 31, 2023 and December 31, 2022), net of discount Carrying value Series A Preferred, net of discount Series A Preferred Stock Series A Preferred Stock Proceeds from Previous Acquisition Proceeds drawn under Term Loan Facility Contract with Customer, Liability, Total Total deferred revenue Deferred revenue Balance at beginning of period Balance at end of period Contract with Customer, Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Intangible assets, net Long-term [Abstract] Long-Term Debt, Excluding Current Maturities [Abstract] 2021 Compensation Cycle [Member] Two Thousand Twenty One Compensation [Member] 2021 compensation. Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] CONDENSED STATEMENTS OF CASH FLOWS [Abstract] Statement of Cash Flows [Abstract] Counterparty Name Counterparty Name [Axis] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Investments in unconsolidated affiliates Balance at beginning of period Balance at end of period Equity Method Investments Less: Premium on repurchase of noncontrolling interests, net of tax Premium on repurchase of noncontrolling interests, net of tax Premium On Repurchase Of Noncontrolling Interests Net Of Tax Premium on repurchase of noncontrolling interests, net of tax. Financial Instruments Recorded on Our Consolidated Balance Sheets at Fair Value: Financial Instruments Recorded On Our Consolidated Balance Sheets At Fair Value [Abstract] Financial instruments recorded on our consolidated balance sheets at fair value. Consideration received on sale of interest on subsidiary Proceeds from Divestiture of Interest in Consolidated Subsidiaries Agreement description Debt Instrument, Description Entity Entity [Domain] Deferred Tax Assets, Other Other Unvested Restricted Stock Units [Member] Unvested Restricted Stock Awards [Member] Restricted Stock [Member] Equity Components Equity Components [Axis] Average annual adjusted financial statement income. Average annual adjusted financial statement income Average annual adjusted financial statement income Entity Address, Address Line One Entity Address, Address Line One Repayment of borrowings Extinguishment of Debt, Amount Carnero G&P LLC [Member] Carnero Joint Venture [Member] Carnero Joint Venture [Member] Carnero joint venture. Reconciliation of Net Income and Weighted Average Shares Outstanding Used in Computing Basic and Diluted Net Income Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction [Table] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Gathering Systems [Member] Gas Gathering and Processing Equipment [Member] Hedging Designation Hedging Designation [Domain] Train 7 [Member] Train Seven [Member] Train seven. Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Loss Contingency, Damages Paid, Value Damages awarded Subsequent Event Type Subsequent Event Type [Axis] Change in income tax rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Change in deadstock commodity inventory Non Cash Adjustment To Line Fill Non cash adjustment to line-fill. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. Total number of additional units available (in shares) Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Available For Grant Share based compensation arrangement by share based payment award number of additional shares available for grant. Summary of Potential Common Stock Equivalents Excluded from Determination of Diluted Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Changes in accrued distributions to noncontrolling interests Changes In Accrued Distributions To Noncontrolling Interests Changes in accrued distributions to noncontrolling interests. Hedging Relationship Hedging Relationship [Axis] Cash paid for amounts included in the measurement of lease liabilities Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract] Cash paid for amounts included in measurement of lease liabilities. Amounts Recorded in Other Comprehensive Income and Amounts Reclassified from OCI to Revenue Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Active State or Province Code Active State or Province Code [Domain] Debt issuance costs, net of amortization Unamortized Debt Issuance Expense Debt issuance cost Net deferred tax asset (liability) Components Of Deferred Tax Assets Liabilities Net [Abstract] Net deferred tax liability [Abstract] Outstanding (in shares) Outstanding, beginning of period (in shares) Outstanding, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Senior Unsecured Notes Due April2026 [Member] Senior unsecured notes due April 2026. Senior Unsecured 5.875% Notes due April 2026 [Member] Entity Voluntary Filers Entity Voluntary Filers Finite-Lived Intangible Asset, Expected Amortization, Year Two 2026 Amendment Flag Amendment Flag Contributions from noncontrolling interests Proceeds from Noncontrolling Interests Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Net Income (Loss) Attributable to Noncontrolling Interest, Total Less: Net income attributable to noncontrolling interest Less: Net income (loss) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Current Income Tax Expense (Benefit), Total Current expense (benefit) Current Income Tax Expense (Benefit) Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] TRGP Senior Unsecured Notes [Member] T R G P Senior Unsecured Notes [Member] TRGP Senior unsecured notes. Interest capitalized on major projects Interest Costs Capitalized Operating lease liabilities Operating Lease, Liability, Noncurrent Operating leases, Non-current liabilities PSU?s Granted in 2018 and 2019 [Member] P S U Granted In Twenty Eighteen And Twenty Nineteen [Member] PSU Granted in twenty eighteen and twenty nineteen. TPL Notes Due 2021 and 2023 [Member] T P L Senior Notes Due Two Thousand Twenty One And Two Thousand Twenty Three [Member] TPL senior notes due 2021 and 2023. Current Liabilities from Risk Management Activities [Member] Other Current Liabilities [Member] Federal [Member] Domestic Tax Jurisdiction [Member] TRGP revolver and partnership revolver. TRGP Revolver and Partnership Revolver [Member] Previous TRGP Revolver and Partnership Revolver [Member] Accounts payable and accrued liabilities Non Cash Balance Sheet Movements Related To Accounts Payable And Accrued Liabilities Held For Sale Non-cash balance sheet movements related to accounts payable and accrued liabilities held for sale. Debt Instrument, Name Debt Instrument, Name [Domain] Reconciliation of Reportable Segment Operating Margin to Income (Loss) Before Income Taxes Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Property, plant, and equipment Deferred Tax Liabilities, Property, Plant and Equipment Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Term SOFR Rate [Member] Net income (loss) attributable to Targa Resources Corp. Net income (loss) attributable to Targa Resources Corp. Lessee Lease Description [Table] Lessee, Lease, Description [Table] Partnership 5⅜% Senior Notes due 2027 [Member] Five Point Three Seven Five Percent Senior Unsecured Notes Due2027 [Member] Partnership 5.375% Senior Notes due 2027. 5.375% Senior Notes due 2027 [Member] Operating expenses Operating Costs and Expenses, Total Operating expenses Operating Costs and Expenses Variable Rate Variable Rate [Domain] Gathering and Processing [Member] Gathering And Processing [Member] Assets used in the gathering of natural gas produced from oil and gas wells and processing this raw natural gas into merchantable natural gas by extracting NGLs and removing impurities. Contributions to defined contribution plan Defined Contribution Plan, Cost Business Acquisition, Pro Forma Revenue Revenues Senior Unsecured of 4.875% Senior Notes due February 2031 [Member] Senior Unsecured of 4⅞% Senior Notes due February 2031 [Member] Senior Unsecured Notes Due February2031 [Member] Senior unsecured notes due february 2031. Contractual Obligation, to be Paid, Year Two 2026 Debt Instrument, Interest Rate Terms Interest rate, description Schedule of Outstanding Debt Schedule of Debt [Table Text Block] Targa Badlands LLC [Member] Targa Badland [Member] Targa badland. Compensation on equity grants Shares Granted, Value, Share-Based Payment Arrangement, before Forfeiture Equity Component Equity Component [Domain] Options [Member] Options Held [Member] Statistical Measurement Statistical Measurement [Domain] Document Financial Statement Error Correction [Flag] General and Administrative Expense, Total General and administrative expense General and administrative expense General and Administrative Expense Finance Lease Right-of-Use Assets [Member] Finance Lease Right Of Use Assets [Member] Finance lease right-of-use assets. Other Nonoperating Income (Expense), Total Other, net Other Nonoperating Income (Expense) Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Assets And Liabilities Held For Sale [Line Items] Assets And Liabilities Held For Sale [Line Items] Assets and liabilities held for sale. Treasury Stock [Member] Treasury Stock, Common [Member] 2018 ATM Program [Member] Two Thousand Eighteen A T M Program [Member] Two thousand eighteen ATM program South Texas acquisition. South Texas Acquisition [Member] South Texas Acquisition Cybersecurity Risk Management Processes Integrated [Flag] Proceeds from Lines of Credit, Total Proceeds from borrowings under credit facilities Proceeds from Lines of Credit Gain (Loss) Recognized in Income on Derivatives Derivatives Not Designated as Hedging Instruments [Table Text Block] Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Preferred Stock, Shares Issued, Total Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Amount of common stock authorized under equity distribution agreement Amount Of Common Stock Authorized Under Equity Distribution Agreement Amount of common stock authorized under equity distribution agreement. Operating cash flows for operating leases Operating Lease, Payments Derivative Asset, Fair Value, Gross Asset, Total Gross asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Derivative assets Debt Instrument, Unamortized Discount, Total Debt Instrument, Unamortized Discount Unamortized discount Additions Asset Retirement Obligation, Liabilities Incurred GCX [Member] Gulf Coast Express Pipeline [Member] Gulf coast express pipeline. WestTex LLC one. WestTex LLC one [Member] WestTex LLC [Member] Venice Energy Services one. Venice Energy Services one [Member] Venice Energy Services [Member] Petroleum Products [Member] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Other Deferred Tax Liabilities, Other Finite-Lived Intangible Assets Acquired Additions from Delaware Basin Acquisition Southcross Acquisition Southcross Acquisition [Member] Southcross acquisition. Derivative contract categorized as Level 3 Number Of Derivative Contract Categorized As Level3 Number of derivative contract categorized as level 3. Fractionation-related infrastructure funded and owned percentage Fractionation Related Infrastructure Funded And Owned Percentage Fractionation-related infrastructure funded and owned percentage. Consolidation Items Consolidation Items [Axis] Reconciliation of reportable segment operating margin to income (loss) before income taxes: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] General partner capital contribution allocation percentage Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Class of Stock Class of Stock [Domain] Other comprehensive income (loss), after tax Other Comprehensive Income (Loss), Net of Tax Deemed dividend on partial repurchase of shares Deemed Dividend On Partial Repurchase Of Shares Deemed dividend on partial repurchase of shares. Reconciliation Of Operating Profit Loss From Segments To Consolidated [Table] Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Cumulative Effect, Period of Adoption, Adjustment [Member] Cumulative Effect, Period of Adoption, Adjustment [Member] Schedule of Changes in Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Financial Support to Nonconsolidated Legal Entity [Domain] Comprehensive income (loss) attributable to Targa Resources Corp. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Dividends Payable [Table] Dividends Payable [Table] Year Six [Member] Year six. Year 2029 [Member] Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurements Line of credit facility, current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Blackcomb Pipeline. Blackcomb Pipeline [Member] Blackcomb Pipeline [Member] Components of Federal and State Income Tax Provisions Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Future [Member] Future [Member] Goodwill Non Cash Balance Sheet Movements Related To Goodwill Held For Sale Non cash balance sheet movements related to goodwill held for sale. Weighted average amortization period, intangible assets Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Estimated useful life of intangible assets Preferred stock, par value (in dollar per share) Preferred Stock, Par or Stated Value Per Share Major Winter Storm [Member] Major Winter Storm [Member] Major winter storm. Stonepeak Infrastructure Partners [Member] Stonepeak Infrastructure Partners [Member] Stonepeak Infrastructure Partners Shares issued under compensation program (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture Income tax reconciliation: Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Preferred Stock, redemption price Temporary equity, redemption price per share Repayments of credit facilities Repayments of Lines of Credit Ownership interest Subsidiary, Ownership Percentage, Parent Ownership Percentage Finite Lived Intangible Assets Acquired Weighted Average Customer Attrition Rate Finite Lived Intangible Assets Acquired Weighted Average Customer Attrition Rate Customer attrition rate, weighted average Antidilutive Securities Antidilutive Securities [Axis] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Permanent adjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Property, Plant and Equipment and Intangible Assets Property, Plant, and Equipment and Intangible Assets [Text Block] Accretion expense Accretion of asset retirement obligations Asset Retirement Obligation, Accretion Expense Entity Interactive Data Current Entity Interactive Data Current Sales of Commodities [Member] Product [Member] Senior Unsecured 6.500% Fixed Rate, due March 2034 [Member] Senior Unsecured Notes Due March 2034 [Member] Senior unsecured notes due March 2034 member. Income Loss From Continuing Operations Before Tax Income (loss) from continuing operations, before tax. Income attributable to Targa Resources Corp. before income taxes Proceeds from Issuance of Senior Long-Term Debt Proceeds from issuance of senior unsecured notes Derivative [Table] Derivative [Table] Redemption price, percentage of face value Debt Instrument, Redemption Price, Percentage Accounting Standards Update Accounting Standards Update [Domain] Goodwill [Line Items] Goodwill [Line Items] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Related Party Transaction Related Party Transaction [Domain] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Related Party Transactions Related Party Transactions Disclosure [Text Block] Balance Sheet Location Statement of Financial Position Location, Balance [Axis] Corporate alternative minimum tax percentage. Corporate alternative minimum tax percentage Corporate alternative minimum tax percentage Less imputed interest Finance Lease, Liability, Undiscounted Excess Amount Statistical Measurement Statistical Measurement [Axis] Finite-Lived Intangible Asset, Expected Amortization, Year Five 2029 Regulatory Income Taxes, Policy [Policy Text Block] 45Q Tax Credits Schedule Of Equity Method Investments [Table] Equity Method Investment [Table] Total Expenses on Non-Cancelable Commitments Schedule Of Non Cancelable Commitments Expenses Table [Text Block] Schedule ​of non cancelable commitments expenses. Environmental Liabilities and Other Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Option to purchase equity interest percentage Option To Purchase Equity Interest Percentage Option to purchase equity interest percentage. Cost of Goods and Services Sold, Total Product purchases and fuel Product purchases and fuel Other segment items Operating lease cost Operating Lease, Cost Logistics and Transportation [Member] Logistics And Transportation [Member] Logistics and transportation. Senior unsecured notes five point eight seven five percent due two thousand twenty seven. Senior Unsecured Notes Five Point Eight Seven Five Percent Due Two Thousand Twenty Seven [Member] Senior Unsecured 5.875% Notes due 2027 [Member] Third Year [Member] Share Based Compensation Award Tranche Seven [Member] Share based compensation award tranche seven. Related Party Related and Nonrelated Parties [Domain] Results of Tender Offers Schedule of Extinguishment of Debt [Table Text Block] No Expiration Period [Member] No Expiration Period [Member] No expiration period. Total lease cost Lease, Cost Guideline performance percentage based on total shareholder return Share Based Compensation Arrangement By Share Based Payment Award Performance Percentage Share based compensation arrangement by share based payment award performance percentage. Operating cash flows for finance leases Finance Lease, Interest Payment on Liability Financial Support to Nonconsolidated Legal Entity [Axis] Derivative liabilities Long-term liabilities from risk management activities Derivative Liability Before Effects Of Master Netting Arrangements Noncurrent Fair value, before the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Finite-Lived Intangible Assets, Gross, Total Intangible assets Finite-Lived Intangible Assets, Gross Payments to Acquire Businesses, Net of Cash Acquired, Total Payments to Acquire Businesses, Net of Cash Acquired Outlays for business acquisition, net of cash acquired Outlays for business acquisition, net of cash acquired Summary of Restricted Stock Awards Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Total number of units available (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Derivative [Line Items] Derivative [Line Items] O 2022 Q1 Dividends [Member] O 2022 Q1 Dividends. Quarterly Cash Dividend Q1 2022 [Member] Granted (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Remaining weighted average vesting periods of unrecognized compensation expenses Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Unsecured Commercial Paper Notes [Member] Unsecured commercial paper notes. Existing TRP Revolver [Member] T R P Revolver [Member] Refers to the debt instruments revolver. Ownership Ownership [Domain] Carrying Value [Member] Measurement Basis [Axis] Income Statement Location Statement of Income Location, Balance [Axis] Total assets Total assets Assets Expected term of grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Assets And Liabilities Held For Sale [Table] Assets And Liabilities Held For Sale [Table] Assets and liabilities held for sale. Contract with Customer, Basis of Pricing Contract with Customer, Basis of Pricing [Domain] WhiteWater Midstream, LLC [Member] WhiteWater Midstream, LLC. WhiteWater Midstream, LLC [Member] Tax Period Tax Period [Axis] Debt Instrument [Table] Schedule of Long-Term Debt Instruments [Table] Deferred Tax Liabilities, Gross, Total Deferred tax liabilities Deferred Tax Liabilities, Gross Unusual or Infrequent Item, or Both Unusual or Infrequent Item, or Both [Domain] Vested (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Reduction of owner's equity related to accrued dividends on unvested equity awards under share compensation arrangements Dividends Payable Business Acquisition [Line Items] Business Acquisition [Line Items] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Entity Address, City or Town Entity Address, City or Town Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Equity [Abstract] Income (Loss) from Equity Method Investments, Total Equity (earnings) loss of unconsolidated affiliates Equity in net income (loss) of consolidated subsidiaries Equity earnings (loss) Income (Loss) from Equity Method Investments Segments Segments [Axis] Derivative Asset [Abstract] Derivative Asset [Abstract] Auditor Location Auditor Location Schedule of Maturities of Long-Term Debt [Table Text Block] Schedule of Contractual Maturities of Debt Obligations Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Finance Lease, Liability, to be Paid, Year Two 2026 Dividends Dividends [Axis] Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Notional volumes of commodity hedges (in Bbl per day) Derivative, Nonmonetary Notional Amount, Volume Asset Retirement Obligations Asset Retirement Obligation [Policy Text Block] Hedging Relationship Hedging Relationship [Domain] Aggregate principal amount issued Debt Instrument, Face Amount Amount outstanding Grand Prix DevCo JV [Member] Grand Prix Dev Co Joint Venture [Member] Grand Prix DevCo joint venture Pro forma net presentation, liability, noncurrent Derivative Liability, Noncurrent Proceeds from Sale of Productive Assets, Total Proceeds from Sale of Productive Assets Proceeds from sale of assets TRGP Senior Revolving Credit Facility due February 2027 [Member] T R G P Senior Revolving Credit Facility [Member] TRGP senior revolving credit facility. Dividend equivalent rights Dividend equivalent rights DividendEquivalentRights Dividend equivalent rights. Depreciation, Total Depreciation expense Depreciation Commercial Paper Program Commercial Paper Program Policy Text Block Commercial paper program policy. Non-customer revenue Revenue Not from Contract with Customer Fair values of share-based awards vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Excise tax on repurchases of common stock Excise tax on repurchases of common stock Excise tax on repurchases of common stock Excise tax on repurchases of common stock. Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Quarterly Cash Dividend Q2 2023 [Member] O 2023 Q2 Dividends [Member] O 2023 Q2 Dividends. Senior Unsecured Notes Due2025 [Member] Refers to senior unsecured notes due 2025. Senior Unsecured 5.125% Notes due 2025 [Member] Compensation Plans Share-Based Payment Arrangement [Text Block] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Business Combination, Acquired Receivables, Gross Contractual Amount Gross amount due under contract Construction in Progress [Member] Construction in Progress [Member] Fractionation Related Infrastructure [Member] Fractionation Related Infrastructure [Member] Fractionation-related infrastructure. Total number of units authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Targa Resources Partners LP [Member] Targa Resources Partners Lp [Member] Another company which is controlled, directly or indirectly, by its parent. The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. Quarterly Cash Dividend Q4 2023 [Member] O 2023 Q4 Dividends [Member] O 2023 Q4 dividends. Series A Preferred Stock Series A Preferred Stock [Member] Series A Preferred Stock [Member] Finite Lived Intangible Assets Acquired Discount Rate Finite Lived Intangible Assets Acquired Discount Rate Finite-lived intangible assets acquired, discount rate Six point five zero zero percent senior unsecured notes due 2027. Six Point Five Zero Zero Percent Senior Unsecured Notes Due 2027 [Member] 6.500% Senior Notes due 2027 [Member] Targa Resources Partners L P And Targa Resources Partners Finance Corp [Member] Targa Resources Partners LP and Targa Resources Partners Finance Corp. Targa Resources Partners LP and Targa Resources Partners Finance Corporation "TRP Issuers" [Member] Senior Unsecured 6.150% Fixed Rate, due March 2029 [Member] Senior Unsecured Notes Due March 2029 [Member] Senior unsecured notes due March 2029 member. Agua Blanca [Member] Agua Blanca [Member] Agua Blanca. Weighted-average discount rates for operating leases Operating Lease, Weighted Average Discount Rate, Percent Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Fair Value Disclosures [Abstract] Proceeds from borrowings under accounts receivable securitization facility Proceeds from Accounts Receivable Securitization Splitter Agreement [Member] Splitter Agreement [Member] Splitter agreement. Gain (loss) recognized in OCI on derivatives (effective portion) Settlements reclassified to revenues, pre-tax Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax Entity Public Float Entity Public Float Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Revenue attributable to the assets acquired from the date of acquisition Redemption price per unit Preferred Stock, Redemption Price Per Share Deemed dividends - accretion of beneficial conversion feature / partial repurchase of Series A Preferred Stock Deemed Preferred Stock Dividend Accretion Of Beneficial Conversion Feature And Repurchase Of Preferred Stock Deemed preferred stock dividend accretion of beneficial conversion feature and repurchase of preferred stock. Business Acquisition, Pro Forma Information [Table Text Block] Schedule of Unaudited Pro Forma Financial Information Senior Unsecured Notes Due2021 Senior Unsecured Notes Due2021 [Member] Senior unsecured notes due November 2021. Change in fair value, related income tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Cash dividends paid for the vested awards Dividend, Share-Based Payment Arrangement, Cash Contractual Obligation [Table] Contractual Obligation [Table] Contractual obligation. Senior Unsecured 6¾% Notes due March 2024 [Member] Senior Unsecured Notes Due March2024 [Member] Refers to senior unsecured notes due March 2024. Senior Unsecured 6.750% Notes due March 2024 [Member] 2023 Compensation Cycle [Member] Two Thousand Twenty Three Compensation [Member] Two Thousand Twenty Three Compensation. Lessee Lease Description [Line Items] Lessee, Lease, Description [Line Items] Current liabilities: Liabilities, Current [Abstract] Premium Paid Debt Instrument Premium Paid On Extinguishment Of Debt Amount paid for premium on extinguishment of debt. Payments to Noncontrolling Interests Cash paid for purchase of noncontrolling interests Transfers from materials and supplies inventory to property, plant and equipment Transfers From Materials And Supplies To Property Plant And Equipment Amount of materials and supplies transferred to property, plant and equipment in a noncash transactions. Income Taxes Paid, Net, Total Income Taxes Paid, Net Income taxes paid, net of refunds Document Type Document Type Accounting Standards Update Accounting Standards Update [Axis] Other, net Payments for (Proceeds from) Other Investing Activities Asset Impairment Charges, Total Non-cash pre-tax impairments Write-down/impairment charge of assets Asset Impairment Charges Title of 12(b) Security Title of 12(b) Security Cash and Cash Equivalents, at Carrying Value, Ending Balance Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Write-down of assets Write-downs of assets Write Downs Of Asset Amount of write-down of assets during the period. Balance Sheet Location Statement of Financial Position Location, Balance [Domain] Additions Contract With Customer Liability Increase From Cash Receipts Contract with customer liability increase from cash receipts. Long-term Position [Member] Long-Term Liabilities from Risk Management Activities [Member] Other Noncurrent Liabilities [Member] 2020 Compensation Cycle [Member] Two Thousand Twenty Compensation [Member] Two thousand twenty compensation. Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Lessee, Operating Lease, Liability, to be Paid, Year Five 2029 Summary of Components of Lease Expense Lease, Cost [Table Text Block] Dividends Dividends [Domain] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Statement of Stockholders' Equity [Abstract] Capacity of pipeline Capacity Of Pipeline Capacity of pipeline. Allowance for credit losses. Allowance For Credit Losses [Policy Text Block] Allowance for Credit Losses Document Fiscal Period Focus Document Fiscal Period Focus Risks Inherent in Servicing Assets and Servicing Liabilities, Type [Domain] Cedar Bayou Fractionators L P [Member] Cedar Bayou Fractionators L P [Member] Cedar Bayou Fractionators LP [Member] Shares tendered for tax withholding obligations Payment, Tax Withholding, Share-Based Payment Arrangement Long-term Debt, Excluding Current Maturities, Total Long-term debt Long-Term Debt, Excluding Current Maturities Dividends on Share-Based Awards Dividend, Share-Based Payment Arrangement Dividend, Share-Based Payment Arrangement, Total Equity Distribution Agreement May 2017 [Member] Equity Distribution Agreement May Two Thousand Seventeen [Member] Equity distribution agreement may two thousand seventeen. Two thousand and ten TRGP plan. Two Thousand And Ten TRGP Plan [Member] 2010 TRGP Plan [Member] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Long-term debt Long-term debt Long-Term Debt and Lease Obligation Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property, plant and equipment Property, Plant and Equipment, Gross Consolidation Policy Consolidation, Policy [Policy Text Block] West OK [Member] West O K [Member] Refers to entity WestOK natural gas gathering system and processing plants. SOFR Adjustment For Term SOFR Loans [Member] S O F R Adjustment For Term S O F R Loans [Member] SOFR adjustment for term SOFR loans. Subsequent Event Type Subsequent Event Type [Domain] Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total Finance Lease, Right-of-Use Asset, after Accumulated Amortization Finance Lease, Asset Finance leases, right-of-use assets, net Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Leases Lessee, Leases [Policy Text Block] Fair Value [Member] Estimate of Fair Value Measurement [Member] O 2024 Q1 dividends. O 2024 Q1 Dividends [Member] Quarterly Cash Dividend Q1 2024 [Member] Contingencies Legal Matters and Contingencies [Text Block] T2 Joint Ventures [Member] T2 Joint Ventures [Member] Represents together the T2 Joint Ventures. Operating Segments [Member] Operating Segments [Member] Number of development joint ventures Number Of Development Joint Ventures Number of development joint ventures. First Year [Member] Share Based Compensation Award Tranche Five [Member] Share based compensation award Tranche Five. Total Debt Instrument Carrying Amount Net Total amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Senior unsecured notes State income taxes, net of federal tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Other current assets Blackstone Energy Partners. Blackstone Energy Partners [Member] Blackstone Energy Partners Thereafter Long-Term Debt, Maturity, after Year Five Financial Instruments Financial Instruments [Domain] NGL [Member] Natural Gas Liquids (NGL) [Member] O 2022 Q3 Dividends [Member] O 2022 Q3 Dividends. Quarterly Cash Dividend Q3 2022 [Member] Remaining duration of contracts Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Preferred stock dividend paid Dividends, Preferred Stock, Cash Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] New Mexico Environment Department [Member] New Mexico Environment Department [Member] New mexico environment department. Non-cash financing activities: Non Cash Financing Activities [Abstract] Non-cash financing activities. Channelview, Texas [Member] Channelview Texas [Member] Channelview, Texas. Income Tax Rate Reconciliation, State tax provision error correction. Income Tax Rate Reconciliation, State tax provision error correction State tax provision error correction Targa Resources Corp [Member] Targa Resources Corp [Member] Targa Resources Corp. Partners' Capital [Abstract] Dividends Declared per Share of Common Stock Common stock dividends, per share Common Stock, Dividends, Per Share, Declared Revenue from Contract with Customer, Excluding Assessed Tax, Total Revenue recognized Revenue from Contract with Customer, Excluding Assessed Tax Income Taxes Income Tax Disclosure [Text Block] Derivative Activities - Hedge [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Sale of ownership interests in subsidiaries, net Noncontrolling Interest, Increase from Sale of Parent Equity Interest Debt repurchased, book value Debt Instrument Repurchased Amount Book Value Debt instrument repurchased amount book value. Reconciliation of Income Tax Provision (Benefit) Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Cybersecurity Risk Management, Strategy, and Governance [Abstract] Ownership Ownership [Axis] Summary of Estimated Minimum Revenue Expected to be Recognized in Future Related to Unsatisfied Performance Obligations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] NGL Transportation, Fractionation and Services [Member] N G L Transportation Fractionation And Services [Member] NGL transportation, fractionation and services. General and administrative expenses General and administrative expenses Selling, General and Administrative Expense Selling, General and Administrative Expense, Total Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] Short-term Debt, Type Short-Term Debt, Type [Axis] Repurchases of common stock Net carrying value of shares repurchased Stock Repurchased During Period, Value Credit Facility Credit Facility [Domain] Senior Notes due 2052 [Member] Senior Unsecured Notes Due2052 [Member] Senior Unsecured Notes Due 2052. Senior Unsecured Notes Due2052 [Member] Less: Deemed dividends on Series A Preferred Deemed dividends on Series A Preferred Stock Deemed preferred stock dividend. Less: Deemed dividends on Series A Preferred Stock Leases Lessee Operating And Finance Leases [Text Block] Lessee operating and finance leases. Intangible assets, net Intangible assets, net Balance at beginning of period Balance at end of period Finite-Lived Intangible Assets, Net Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Securitization Facility [Member] Securitization Facility Securitization Facility [Member] Securitization facility. Short-term Debt, Type Short-Term Debt, Type [Domain] Redemption of Series A Preferred Stock. Redemption of Series A Preferred Stock Redemption of Series A Preferred Stock Other, net Proceeds from (Payments for) Other Financing Activities Preferred stock, liquidation per share Preferred Stock, Liquidation Preference Per Share Temporary Equity, Liquidation Preference Per Share Entity Address, Address Line Two Entity Address, Address Line Two Summary of Performance Share Units Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] Litigation Case [Domain] LIABILITIES, SERIES A PREFERRED STOCK AND OWNERS' EQUITY Liabilities and Equity [Abstract] Blackcomb joint venture. Blackcomb Joint Venture [Member] Blackcomb Joint Venture [Member] Write-off of debt issuance costs Write-off debt issuance cost Deferred Debt Issuance Cost, Writeoff Stock Repurchased and Retired During Period, Value Repurchase of common shares, Value Document Period End Date Document Period End Date Other financial information [Abstract] Segment, Reconciliation of Other Items from Segments to Consolidated [Abstract] Condensate [Member] Condensate [Member] Condensate product hedged against price risk. Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Securities Financing Transaction Securities Financing Transaction [Axis] Tangible Asset Impairment Charges, Total Non-cash pre-tax impairment losses Tangible Asset Impairment Charges Contractual Obligation, to be Paid, Year Four 2028 ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Expire Between 2036 and 2037 [Member] Expire Between2036 And2037 [Member] Expire between 2036 and 2037. Anti-dilutive shares excluded from the determination of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Carrying Reported Amount Fair Value Disclosure [Member] Carrying Value [Member] Reported Value Measurement [Member] Gathering and Processing [Member] Gathering And Processing Fees [Member] A component of an enterprise pertaining to gathering and processing fees. Business Combination, Acquired Receivable, Fair Value Fair value of the assets acquired includes trade receivables Ownership interest Equity Method Investment, Ownership Percentage Goodwill Goodwill Disclosure [Text Block] Accrued current liabilities Accrued Liabilities, Current, Total Accrued liabilities Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Pro forma net presentation, liability, current Derivative Liability, Current 2010 TRC Stock Incentive Plan [Member] T R C Stock Incentive Plan [Member] Under the 2010 Stock Incentive Plan, the Company provides various types of stock awards to employees, consultants and non-employee directors. An equity-based payment arrangement is an arrangement in which one or more employees receive shares of stock (units), stock (unit) options, or other equity instruments, or the employer incurs a liability(ies) to the employee(s) in amounts based on the price of the employer's stock (unit). Segment reporting, CODM, profit (loss) measure, how used, description Income tax (expense) benefit Total income tax expense (benefit) Income Tax Expense (Benefit) Targa Resources General Partner LLC [Member] Targa Resources G P L L C [Member] Targa Resources GPLLC. Senior Unsecured 5.200% Fixed Rate, due July 2027 [Member] Senior Unsecured Notes Due July2027 [Member] Senior unsecured notes due July 2027. Total Common Dividends Declared Dividends, Common Stock, Cash Discount over face value paid upon redemption Redemption Discount Redemption discount. Income Tax Authority, Name Income Tax Authority, Name [Axis] Deferred tax assets: Components of Deferred Tax Assets [Abstract] Trading Symbol Trading Symbol Business Combinations [Abstract] The rate of liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. Preferred Series A Liquidation Stock Percentage Temporary Equity Liquidation Preference Percentage Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement [Line Items] Variable Rate Variable Rate [Axis] Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total Targa Resources Corp. stockholders' equity Targa Resources Corp. stockholders' equity Equity, Attributable to Parent Net Income (Loss) Attributable to Redeemable Noncontrolling Interest, Total Increase in net income (loss) attributable to noncontrolling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Securities Financing Transaction [Table] Security Financing Transaction [Table] Change in fair value, after tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Derivative liabilities Derivative Liability Before Effects Of Master Netting Arrangements Fair value, before the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Product Exchanges Product Exchanges Policy [Text Block] Disclosure of accounting policy for product exchanges to satisfy timing and logistic needs. Processing capacity Processing Capacity Of Gas Plants Refers to the processing capacity of gas plants. Business Combination, Acquired Receivables, Estimated Uncollectible Expected to be uncollectible Nonvested, number of shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Preferred stock liquidation preference date Preferred Stock Liquidation Preference Date Preferred stock liquidation preference date. Deferred tax assets before valuation allowance Deferred Tax Assets, Gross Impairment Non-cash pre-tax impairment losses on intangible assets Impairment of Intangible Assets, Finite-Lived Impairment of Intangible Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset Permian Delaware [Member] Permian Delaware [Member] Permian Delaware. Other long-term liabilities Other Liabilities, Noncurrent Total other long-term liabilities Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Product purchases and fuel Related Party Transaction Expenses From Product Purchases And Fuel Related party transaction expenses from product purchases and fuel. Derivative Instrument Derivative Instrument [Axis] Payments to Acquire Businesses, Gross Business acquisition, purchase price Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Train 6 DevCo JV [Member] Train Six Dev Co Joint Venture [Member] Train Six DevCo joint venture. Related Party Transactions [Abstract] Preferred Stock, Shares Authorized Temporary Equity, Shares Authorized Variable lease cost Variable Lease, Cost Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment [Table] Cybersecurity Risk Management, Strategy, and Governance [Table] Other, net Other Operating And Non Operating Income Expense Net Other operating and non operating income expense net. Reduction of Owner's Equity Related to Accrued Dividends on Unvested Equity Awards Under Share Compensation Arrangements Reduction of owner's equity related to accrued dividends on unvested equity awards under share compensation arrangements Reduction of owner's equity related to accrued dividends on unvested equity awards under share compensation arrangements. Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Goodwill Goodwill Goodwill Repayments of Commercial Paper Repayments of commercial paper notes Senior Unsecured 4.950% Notes due April 2052 [Member] Senior Unsecured Notes Due April2052 [Member] Senior unsecured notes due April 2052. Senior unsecured notes four point nine five zero percent due two thousand twenty seven. Senior Unsecured Notes Four Point Nine Five Zero Percent Due Two Thousand Twenty Seven [Member] Senior Unsecured 4.950% Notes due 2027 [Member] Weighted average interest rate incurred Debt, Weighted Average Interest Rate Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Organization and Operations Nature of Operations [Text Block] Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Consolidated Revenue [Member] Termination date Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Date Reportable Segment, Aggregation before Other Operating Segment [Member] Total Reportable Segments [Member] Total Reportable Segments Operating Margin [Member] Disposal Group Classification Disposal Group Classification [Axis] Deferred Income Tax Expense (Benefit), Total Deferred income tax (expense) benefit Deferred income tax expense (benefit) Deferred expense (benefit) Deferred Income Tax Expense (Benefit) Geographical Geographical [Axis] Finance Lease, Liability, to be Paid, Year Three 2027 Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Leases [Abstract] Accounts payable, accrued liabilities and other liabilities Increase Decrease In Account Payable Accrued Liabilities And Other Liabilities The increase (decrease) in account payable, accrued liabilities and other liabilities. Partnership 5⅞% Senior Notes due 2026 [Member] Five Point Eight Seven Five Percent Senior Unsecured Notes Due2026 [Member] Partnership 5.875% Senior Notes due 2026. 5.875% Senior Notes due 2026 [Member] Pro forma net presentation, asset, current Derivative Asset, Current Operating margin Operating Margin Revenues reduced by product purchases and operating expenses. (Gain) loss from financing activities Gain (loss) from financing activities Gain (Loss) on Repurchase of Debt Instrument Use of Estimates Use of Estimates, Policy [Policy Text Block] Little Missouri 4 [Member] Little Missouri4 Limited Liability Company [Member] Little missouri 4 limited liability company. Temporary Equity, Aggregate Amount of Redemption Requirement Preferred stock, consideration paid Director Grants [Member] Director Grants [Member] Information on director grants. Percentage of employees' gross pay for which employer contributes matching contribution Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Purchase of interest in joint venture Business Combination Fair Value Of Purchase Price Allocated To Joint Venture Business ​combination f​air value of purchase price allocated to joint venture. Term SOFR [Member] Term S O F R [Member] Term SOFR. Other operating income (expense) Total other operating (income) expense Other operating (income) expense Other Operating Income (Expense), Net Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Year Four [Member] Derivatives expiring in four years in the future. Year 2027 [Member] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Initial capital contribution Initial capital contribution Initial capital contribution Related Party [Member] Subsidiary ownership interest sale percentage Subsidiary Ownership Interest Sale Percentage Subsidiary ownership interest sale percentage. Leverage ratio before collateral release date Leverage Ratio Before Collateral Release Date Leverage ratio before collateral release date. Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Accounts Receivable Securitization Facility [Member] Accounts Receivable Securitization Facility [Member] Financing through issuance of security instrument that represents a creditor relationship with the holder of the investment security related to Accounts Receivable securitization facility. Partnership 6⅞% Senior Notes due 2029 [Member] Six Point Eight Seven Five Percent Senior Unsecured Notes Due2029 [Member] Partnership 6.875% Senior Notes due 2029. 6.875% Senior Notes due 2029 [Member] Schedule Of Business Acquisitions By Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Number of operated joint ventures Number Of Operated Joint Ventures Represents the number of operated joint ventures acquired in a merger. Scenario Scenario [Axis] Components of deferred revenue Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Income tax (expense) benefit: Income Tax Expense (Benefit), Continuing Operations [Abstract] Notional volumes of commodity hedges (in MMBtu per day) Derivative, Nonmonetary Notional Amount, Energy Measure Security Exchange Name Security Exchange Name Counterparty Name [Domain] Counterparty Name Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Dividends, Common Stock, Total Common stock dividends Dividends, Common Stock Business Acquisition, Acquiree Business Acquisition, Acquiree [Domain] Operating Expenses Operating Expenses, Total Operating expenses Contractual Obligation, to be Paid, Year Three 2027 Versado Gathering System [Member] Versado Gathering System [Member] Versado Gathering System. Cash Flow Hedging [Member] Cash Flow Hedging [Member] Cumulative Effect, Period of Adoption Cumulative Effect, Period of Adoption [Axis] Long-Lived Tangible Asset Long-Lived Tangible Asset [Domain] Senior Unsecured 6.250% fixed rate, due July 2052 [Member] Senior Unsecured Notes Due July2052 [Member] Senior unsecured notes due July 2052. Class of Stock Class of Stock [Axis] Grand Prix Joint Venture [Member] Grand Prix Joint Venture [Member] Grand prix joint venture. Energy Energy [Axis] Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated depreciation, amortization and impairment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Legal Entity Legal Entity [Axis] Secured Debt [Member] Secured Debt [Member] Fair Value Measurements Fair Value Disclosures [Text Block] Lessee, Operating Lease, Liability, to be Paid, Year Three 2027 Changes in Deferred revenue Increase Decrease In Contract With Customer Liability Table [Text Block] Tabular disclosure of increase decrease in contract with customer liability table text block. Subsequent Event [Member] Subsequent Event [Member] Maximum [Member] Maximum [Member] Liabilities and Equity Total liabilities and owners' equity Partners' Capital Account, Distributions, Total Total Distributions Partners' Capital Account, Distributions Preferred stock, redemption date Temporary equity redemption date. Temporary equity redemption date Gain or loss on modification Gain (Loss) on Extinguishment of Debt, Total Gain (loss) due to debt extinguishments Gain (Loss) on Extinguishment of Debt Gain (loss) due to debt extinguishments WhiteWater. White Water [Member] WhiteWater [Member] Operating Lease, Right-of-Use Asset Operating leases, right-of-use assets, net Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Retention RSU Awards [Member] Retention RSU Awards. Retention RSU Awards [Member] U.s. environmental protection agency. U.S. Environmental Protection Agency [Member] Cash: Supplemental Cash Flow Information [Abstract] Derivative liabilities Liabilities from risk management activities Derivative Liability Before Effects Of Master Netting Arrangements Current Fair value, before the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Maturity year Debt Instrument Maturity Year Debt instrument maturity year. Partial repurchase of Series A Preferred Stock Adjustments To Additional Paid In Capital Partial Repurchase Preferred Stock Adjustments to additional paid in capital partial repurchase preferred stock. Earnings Per Share, Diluted, Total Net income (loss) per common share - diluted Earnings Per Share, Diluted Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Total Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Amount of liabilities assumed LM4 Plant [Member] Natural Gas Processing Plant [Member] Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Redemption of preferred stock value. Redemption of Preferred Stock Value Redemption of Series A preferred Stock Earnings Per Common Share [Table] Earnings Per Common Share [Table] Earnings per common share. Receivables and other assets Increase (Decrease) in Accounts Receivable and Other Operating Assets Total current assets Assets, Current Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Collateralized Financings, Total Collateralized Financings Partnership accounts receivable securitization facility, due August 2025 Partnership accounts receivable securitization facility, due August 2025 Five point five zero zero percent senior unsecured notes due 2030. Five Point Five Zero Zero Percent Senior Unsecured Notes Due 2030 [Member] 5.500% Senior Notes due 2030 [Member] Capital contributions to partnership Partners' Capital Account, Contributions Federal Federal Deferred Tax Balance For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date related to federal income taxes, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. Tax credit carryforward description Tax Credit Carryforward, Description Scenario Forecast [Member] Forecast [Member] Public offering of common shares (including underwriters' overallotment option) Stock Issued During Period, Shares, New Issues Unrecognized Tax Benefits, Ending Balance Unrecognized Tax Benefits, Beginning Balance Uncertain tax reserves Unrecognized Tax Benefits Senior Unsecured 6.500% Fixed Rate, due February 2053 [Member] Senior Unsecured Notes Due February 2053 [Member] Senior Unsecured Notes Due February 2053. Vesting period Vesting period of awards Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Loss contingency reduction of maximum lossdue to counterparty credit risk by master netting provision. Loss Contingency Reduction Of Maximum LossDue To Counterparty Credit Risk By Master Netting Provision Loss contigency reduction of maximum loss due to counterparty credit risk by master netting provision Entity Filer Category Entity Filer Category Other Comprehensive Income (Loss), before Tax, Total Other comprehensive income (loss), pre-tax Other Comprehensive Income (Loss), before Tax Property, plant and equipment Deferred Tax Assets, Property, Plant and Equipment Senior Unsecured 6.125% Fixed Rate, due March 2033 [Member] Senior Unsecured Notes Due March 2033 [Member] Senior unsecured notes due March 2033. Second Year [Member] Share Based Compensation Award Tranche Six [Member] Share based compensation award tranche six. Senior Unsecured 5 7/8% Notes due August 2023 [Member] Senior Unsecured Notes Due2023 [Member] Refers to senior unsecured notes due August 2023. Senior Unsecured 5.875% Notes due August 2023 [Member] Senior Unsecured Notes Due January2029 [Member] Senior unsecured notes due January 2029. Senior Unsecured of 6.875% Senior Notes due January 2029 [Member] Total owners' equity Balance Balance Equity, Including Portion Attributable to Noncontrolling Interest DevCo JV Repurchase [Member] Dev Co J V Repurchase [Member] DevCo JV Repurchase. Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Existing TRGP Credit Agreement [Member] Existing TRGP Credit Agreement [Member] Existing TRGP credit agreement. Other income (expense): Nonoperating Income (Expense) [Abstract] Debt repurchased, payment Debt Instrument, Repurchase Amount Schedule of Other Long-term Liabilities Other Noncurrent Liabilities [Table Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Natural gas processing capacity in service or under construction Natural Gas Processing Capacity In Service Or Under Construction Natural gas processing capacity in service or under construction. Investments in unconsolidated affiliates Payments for Advance to Affiliate Owners' equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Noncontrolling Interests [Member] Noncontrolling Interest [Member] Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Equity Method Investment, Realized Gain (Loss) on Disposal, Total (Gain) loss from sale of equity-method investment Gain on sale of equity-method investment Gain (loss) from sale of equity-method investment Equity Method Investment, Realized Gain (Loss) on Disposal Redemption condition, maximum number of days from date of closing of equity offerings Maximum Redemption Period From Date Of Closing Of Equity Offerings Within Which Redemption Must Occur Maximum redemption period from date of closing of equity offerings within which redemption must occur. Contractual Obligation, to be Paid, Year Five 2029 Share-based Payment Arrangement, Noncash Expense, Total Compensation on equity grants Share-Based Payment Arrangement, Noncash Expense O 2022 Q2 Dividends [Member] O 2022 Q2 Dividends. Quarterly Cash Dividend Q2 2022 [Member] Related Party Transaction Related Party Transaction [Axis] Commodity Derivative Contracts Asset (Liability) [Member] Commodity Contracts [Member] Commodity Contract [Member] Related Party Related and Nonrelated Parties [Axis] Property, plant and equipment, net of accumulated depreciation and estimated loss on sale Non Cash Balance Sheet Movements Related To Property Plant And Equipment Net Held For Sale Non-cash balance sheet movements related to property, plant and equipment, net held for sale. Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount, Total Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Dividends, Preferred Stock, Total Preferred stock dividends Dividends on Series A Preferred Stock Dividends, Preferred Stock Business combination, contingent consideration, liability, current Business Combination, Contingent Consideration, Liability, Current Energy Energy [Domain] GCX DevCo JV [Member] G C X Dev Co Joint Venture [Member] GCX DevCo joint venture. Entity Registrant Name Entity Registrant Name Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total Gain (loss) recognized in income on derivatives Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Dividends payable nature Dividends Payable, Nature Weighted-average remaining lease terms for finance leases Finance Lease, Weighted Average Remaining Lease Term Number of reportable segments Number of Reportable Segments Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Earnings per Common Share Earnings Per Share [Text Block] Termination date Maturity date Debt Instrument, Maturity Date Entity Emerging Growth Company Entity Emerging Growth Company Equity Method Investments and Joint Ventures [Abstract] Weighted average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic, Total Weighted average shares outstanding - basic Vesting Vesting [Domain] Loss Contingencies [Line Items] Contract with customer liability cash payment. Contract With Customer Liability Cash Payment Cash payment Finance lease liabilities Finance Lease, Liability, Noncurrent Finance leases, Non-current liabilities 5.200% Senior Notes Due 2027 [Member] Five Point Two Zero Zero Percentage Senior Notes Due Two Thousand Twenty Seven [Member] Five point two zero zero percentage senior notes due two thousand twenty seven. Asset Retirement Obligation Revision Of Estimate And Additions Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Change in ARO liability and property, plant and equipment, net due to revised cash flow estimate and additions Interest expense, net Interest expense, net Interest Income (Expense), Nonoperating Schedule Of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Other [Member] Other Operating Segment [Member] Litigation Case [Axis] Processing and Fractionation Facilities [Member] Refining Equipment [Member] Schedule Of Limited Partners Capital Account By Class [Table] Partners' Capital, Limited Partner's Capital Account, Class [Table] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Capital expenditures Segment, Expenditure, Addition to Long-Lived Assets Shares withheld to satisfy tax withholding obligations Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Shares tendered for tax withholding obligations (in shares) Interest payable Interest Payable, Current Estimated average useful life of property, plant and equipment Estimated useful lives Property, Plant and Equipment, Useful Life Interest expense Finance Lease, Interest Expense Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Deferred Tax Asset, Interest Carryforward Disallowed business interest expense carryforward Compressor. Compressor [Member] Other Liabilities, Noncurrent [Abstract] Debt Disclosure [Abstract] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Amortization of Intangible Assets, Total Amortization Amortization Amortization of Intangible Assets Gross collateral Derivative Asset, Fair Value of Collateral Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Financial Instrument Financial Instrument [Axis] Petroleum Reserves Petroleum Reserves [Axis] Earnings per Share Earnings Per Share, Policy [Policy Text Block] Deferred Revenue Arrangement By Type [Table] Deferred Revenue Arrangement, by Type [Table] Changes in Aggregate Asset Retirement Obligations Schedule of Asset Retirement Obligations [Table Text Block] Total expenses on non-cancelable commitments Amount of contractual obligation expense during the period. Cash Settled Restricted Stock Units [Member] Cash Settled Restricted Stock Units [Member] Cash settled restricted stock units. Derivative Asset, Statement of Financial Position [Extensible Enumeration] Debt Issuance Costs Debt, Policy [Policy Text Block] Impairment, Long-Lived Asset, Held-for-Use, Total Impairment of long-lived assets Non-cash pre-tax impairments Impairment of long-lived assets Impairment, Long-Lived Asset, Held-for-Use Revenue Recognition Revenue [Policy Text Block] Share-Based Payment Arrangement [Abstract] Interest payable Increase (Decrease) in Interest Payable, Net Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment of Long-Lived Assets Current Assets from Risk Management Activities [Member] Other Current Assets [Member] Six point seven five zero percent senior unsecured notes due 2024. Six Point Seven Five Zero Percent Senior Unsecured Notes Due 2024 [Member] 6.750% Senior Notes due 2024 [Member] Summary of Transactions with Unconsolidated Affiliates Schedule of Related Party Transactions [Table Text Block] Business Acquisition, Pro Forma Net Income (Loss) Net income Train 6 [Member] Train Six [Member] Train six. Gross collateral Derivative Collateral Obligation Right To Return Reclaim Securities Derivative collateral obligation (right) to return (reclaim) securities. Partnership Units and Related Matters Partners' Capital Notes Disclosure [Text Block] Goodwill impairment Goodwill, Impairment Loss Redemption condition, minimum percentage of aggregate principal amount outstanding immediately after occurrence of redemption Redemption Condition Minimum Percentage Of Aggregate Principal Amount Outstanding Immediately After Occurrence Of Redemption Minimum percentage of aggregate principal amount that must remain outstanding immediately after the occurrence of the redemption of certain notes as a condition of redemption. Limited partner capital contribution allocation percentage Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Cybersecurity Risk Role of Management [Text Block] Other Property, Plant and Equipment [Member] Other Capitalized Property Plant and Equipment [Member] Accounting Policies [Abstract] Estimated amortization expense for intangible assets [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2024 share repurchase program. Two Thousand Twenty Four Share Repurchase Program [Member] 2024 Share Repurchase Program [Member] 2024 Compensation Cycle [Member] Two Thousand Twenty Four Compensation [Member] Two thousand twenty four compensation. Less: Participating share-based earnings Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Undistributed Earnings (Loss) Allocated to Participating Securities, Basic, Total Borrowings outstanding Long-Term Line of Credit, Total Long-Term Line of Credit Schedule Of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Income Tax Disclosure [Abstract] Derivative fair value of net asset if commodity price decreases by 10 percent Derivative fair value of net liability if commodity price decreases by 10 percent Derivative Fair Value Of Asset Liability Net If Commodity Price Decreases By10 Percent Fair value as of the balance sheet date of the assets less the liabilities of a derivative or group of derivatives if the commodity price decreases by 10 percent. Property Plant and Equipment and Intangible Assets Property Plant And Equipment And Intangible Assets Table [Text Block] Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated depreciation. Also includes tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Targa Resources Corp. stockholders' equity: Equity, Attributable to Parent [Abstract] Federal Funds Rate [Member] Federal Funds Rate [Member] Federal funds rate. Compensation on equity grants (in shares) Stock Granted Shares Share Based Compensation Gross Number of shares granted, before forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Cost to current assets and liabilities, net Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets And Liabilities Business combination recognized identifiable assets acquired and liabilities assumed current assets and liabilities. Disposal Group Name Disposal Group Name [Domain] Statement [Table] Statement [Table] Non-cash distributions to noncontrolling interests. Non-cash Distributions To Noncontrolling Interests Non-cash distributions to noncontrolling interests Gulf Coast Fractionators. Gulf Coast Fractionators [Member] Gulf Coast Fractionators LP [Member] Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Less: Comprehensive income (loss) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Acquisition of Gas Gathering and Processing and Crude Oil Gathering Assets in Permian Basin [Member] Acquisition Of Gas Gathering And Processing And Crude Oil Gathering Assets In Permian Basin [Member] Acquisition of gas gathering and processing and crude oil gathering assets in permian basin. Commercial Paper Notes [Member] Commercial Paper Program [Member] Commercial Paper Program [Member] Commercial paper program. Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Schedule of Distributions Distributions Made to Limited Partner, by Distribution [Table Text Block] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Total Change in fair value, pre-tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Other Operating Income (Expense) [Member] Other Operating Income (Expense) [Member] Disposal Group Classification Disposal Group Classification [Domain] Entity File Number Securities Act File Number Segment Information Segment Reporting Disclosure [Text Block] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Five point zero zero zero percent senior unsecured notes due 2028. Five Point Zero Zero Zero Percent Senior Unsecured Notes Due 2028 [Member] 5.000% Senior Notes due 2028 [Member] Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Servicing Assets and Servicing Liabilities Risk [Axis] Repayments of term loan facility Repayments of Bank Debt Revenue from Contract with Customer [Abstract] Cayenne [Member] Cayenne Joint Venture [Member] Cayenne Pipeline Limited Liability Company [Member] Cayenne Pipeline Limited Liability Company. Earnings Per Share [Abstract] Senior Unsecured 4¼% Notes due November 2023 [Member] Senior Unsecured Notes Due November2023 [Member] Refers to senior unsecured notes due November 2023. Senior Unsecured 4.250% Notes due November 2023 [Member] Schedule of Contractual Maturities of Outstanding Debt Obligations Contractual Obligation, Fiscal Year Maturity [Table Text Block] Operating Lease, Liability, Statement of Financial Position [Extensible List] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Statement of Financial Position [Abstract] Partnership Issuers [Member] Partnership Issuers [Member] Refers to the Partnership and Targa Resources Partners Finance Corporation, collectively. Activity Related to Partnership's Investments and Combined Financial Information in Unconsolidated Affiliates Equity Method Investments [Table Text Block] Debt Rating [Member] Debt Rating [Member] Debt rating. Train 7 Joint Venture [Member] Train Seven Joint Venture [Member] Train seven joint venture. Income (loss) from operations Operating Income (Loss) Dividends Declared and/or Paid Dividends Declared [Table Text Block] Long-Term Debt, Maturity, Year One 2025 Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Assets from commodity derivative contracts Pro forma net presentation, asset, total Derivative Asset Letters of Credit [Member] Letter of Credit [Member] Distributions to noncontrolling interests Payments Of Dividends To Noncontrolling Interests Payments of dividends to noncontrolling interests. Entity Shell Company Entity Shell Company Contractual Obligation [Line Items] Contractual Obligation [Line Items] Contractual obligation. Range of interest rates incurred Debt Instrument, Interest Rate, Effective Percentage Non-cash allocation to noncontrolling interests Non Cash Allocation To Noncontrolling Interests Non-cash allocation to noncontrolling interests. Entity Tax Identification Number Entity Tax Identification Number ASSETS Assets [Abstract] Five Point Two Zero Zero Percentage Senior Unsecured Notes Due Two Thousand Twenty Seven [Member] 5.200% Senior Unsecured Notes due 2027. 5.200% Senior Unsecured Notes due 2027 Component Of Deferred Revenue [Table] Component Of Deferred Revenue [Table] Component of deferred revenue. Summary of Other Supplemental Information Related to Leases Schedule Of Other Supplemental Cash Flow Information Related To Leases Table [Text Block] Schedule of other supplemental cash flow information related to leases. Entity Current Reporting Status Entity Current Reporting Status Net income (loss) attributable to common shareholders Net income (loss) attributable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Maximum percentage of taxable income allowed to offset by net operating loss carryforwards per year Tax Cuts And Jobs Act Of2017 Incomplete Accounting Percentage Of Net Operating Losses The percentage of current year taxable income related to net operating losses limitation as tax deduction. Finance Lease, Liability, to be Paid, Year Four 2028 Long-term Debt, Type Long-Term Debt, Type [Axis] Terminaling and Storage Facilities [Member] Gas, Transmission and Distribution Equipment [Member] Summary of Maturities of Lease Liabilities Under Non-cancellable Leases Schedule Of Future Minimum Lease Payments For Operating And Finance Leases Table [Text Block] Schedule of future minimum lease payments for operating and finance leases. Geographical Geographical [Domain] Document Fiscal Year Focus Document Fiscal Year Focus Less: Dividends on Series A Preferred Stock Less: Dividends on Series A Preferred Preferred Stock Dividends, Income Statement Impact Return of capital from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution, Return of Capital TEXAS TEXAS Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued Preferred stock ($0.001 par value, after designation of Series A Preferred Stock: 98,800,000 shares authorized, zero shares issued and outstanding) Cash payments related to transfer of assets Cash Payments Related To Transfer Of Assets Cash payments related to transfer of assets. T2 La Salle T2 LaSalle [Member] T2 La Salle [Member] Represents T2 LaSalle, one of the non-operated joint ventures. Capital Expenditures Incurred but Not yet Paid Impact of net accruals on capital expenditures Accumulated amortization and impairment Finite-Lived Intangible Assets, Accumulated Amortization Senior Unsecured Notes Due January2032 [Member] Senior unsecured notes due January 2032. Senior Unsecured of 4.000% Senior Notes due January 2032 [Member] Limited Partners Capital Account [Line Items] Limited Partners' Capital Account [Line Items] Senior Unsecured of 4% Senior Notes due 2032 [Member] Senior Unsecured Notes Due February2032 [Member] Senior unsecured notes due 2032. Business Acquisition Business Acquisition [Axis] Other Comprehensive Income (Loss), Tax, Total Other comprehensive income (loss), related income tax Other Comprehensive Income (Loss), Tax Tax Credit Carryforward, Amount Tax credit carryforward City Area Code City Area Code Sale price of equity-method investment Disposal Group, Including Discontinued Operation, Consideration Contractual Obligation, to be Paid, Year One 2025 Senior Unsecured Notes Due May2023 [Member] Refers to senior unsecured notes due May 2023. Senior Unsecured 5.250% Notes due May 2023 [Member] Letters of credit outstanding Letters of Credit Outstanding, Amount Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Total current liabilities Liabilities, Current Net income (loss) allocated to common shareholders for basic earnings per share Net income (loss) allocated to common shareholders for basic earnings per share Net income (loss) allocated to common shareholders for basic earnings per share. Net income (loss) allocated to common shareholders for basic earnings per share Percentage of additional contribution per employee made by employer Defined Contribution Plan Additional Contribution Per Employee Made By Employer Percent Percentage of employees' eligible compensation, by the terms of the plan, that the employer may contribute to a defined contribution plan. Delaware Basin acquisition. Delaware Basin Acquisition [Member] Delaware Basin Acquisition Derivative Contract Derivative Contract [Domain] Holders of Limited Partner Interests [Member] Holders Of Limited Partner Interests [Member] Holders of limited partner interests. Return-to-provision Income Tax Reconciliation Return To Provision Income tax reconciliation return to provision. Net proceeds from private placement of notes Proceeds from Debt, Net of Issuance Costs Net proceeds from senior notes Inventory, Net, Total Inventories Inventory, Net Federal statutory income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Excise tax percentage on stock buybacks and tax incentives. Excise tax percentage on stock buybacks and tax incentives Excise tax percentage on stock buybacks and tax incentives Mandatorily Redeemable Preferred Interests [Member] Mandatorily Redeemable Noncontrolling Interests [Member] This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent which are redeemable. The redeemable noncontrolling interests are reported at their estimated redemption value, which approximates fair value. Organization, Consolidation and Presentation of Financial Statements [Abstract] Local Phone Number Local Phone Number Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Additional paid-in capital Additional Paid in Capital Loss Contingency, Lawsuit Filing Date Lawsuit filing date Hedging Designation Hedging Designation [Axis] Employer matching contribution percent Defined Contribution Plan, Employer Matching Contribution, Percent of Match Income Tax Authority Income Tax Jurisdiction [Axis] Income Taxes Income Tax, Policy [Policy Text Block] 6.250% Senior Unsecured Notes due 2052 [Member] Six Point Two Five Zero Percentage Senior Unsecured Notes Due Two Thousand Fifty Two [Member] Six Point Two Five Zero Percentage Senior Unsecured Notes Due Two Thousand Fifty Two [Member] Future non-cancelable commitments related to certain contractual obligations for each of the next five fiscal years and in aggregate thereafter [Abstract] Contractual Obligation, Fiscal Year Maturity [Abstract] Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Total Treasury Stock, Value Treasury stock, at cost (24,000,284 shares and 17,484,440 shares as of December 31, 2024 and 2023) Gas contract amendment. Gas Contract Amendment [Member] Gas Contract Amendment [Member] Shares Acquired, Average Cost Per Share Weighted average price per share Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Debt Issuance Costs, Net, Total Debt Issuance Costs, Net Debt issuance costs Basis Swaps [Member] Basis Swap [Member] Financial Instruments Recorded on Our Consolidated Balance Sheets at Carrying Value: Financial Instruments Recorded On Our Consolidated Balance Sheets At Carrying Value [Abstract] Financial instruments recorded on our consolidated balance sheets at carrying value. Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] CARES Act [Member] C A R E S Act [Member] CARES act. Derivative Assets (Liabilities), at Fair Value, Net, Total Pro forma net presentation, asset Derivative Assets (Liabilities), at Fair Value, Net Operating Lease, Liability, Current Operating leases, Current liabilities Finance lease Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Trade receivables Non Cash Balance Sheet Movements Related To Trade Receivables Held For Sale Non-cash balance sheet movements related to trade receivables held for sale. Income Tax Authority Income Tax Jurisdiction [Domain] Interest rate on fixed rate debt Debt Instrument, Interest Rate, Stated Percentage Retained Earnings [Member] Retained Earnings (Accumulated Deficit) [Member] Retained Earnings [Member] Amortization of Debt Issuance Costs and Discounts, Total Amortization in interest expense Amortization of Debt Issuance Costs and Discounts Revenues Disaggregated by Product and Service Revenue from External Customers by Products and Services [Table Text Block] Payments to Acquire Property, Plant, and Equipment, Total Outlays for property, plant and equipment Payments to Acquire Property, Plant, and Equipment Senior Unsecured Notes Due February2027 [Member] Senior unsecured notes due February 2027. Senior Unsecured 5.375% Notes due February 2027 [Member] Finance lease cost Finance Lease [Abstract] Finance lease. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Trade receivables, net of allowances Document Transition Report Document Transition Report Organization [Abstract] Organization. Payments Of Ordinary Dividends Common And Preferred Shareholders Payments of ordinary dividends common and preferred shareholders. Dividends paid to common and Series A Preferred shareholders Securities Financing Transaction Securities Financing Transaction [Domain] Share Repurchase Program, Authorized, Amount Stock repurchase program, authorized amount Lessee, Operating Lease, Liability, to be Paid, Year Two 2026 Operating loss carryforwards expiry date Operating Loss Carryforwards, Expiration Date Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Additional Cash Flow Elements [Abstract] Derivative assets Assets from risk management activities Derivative Asset Before Effects Of Master Netting Arrangements Current Fair value, before the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain] Other long-term obligations Non Cash Balance Sheet Movements Related To Other Long Term Obligations Held For Sale Non cash balance sheet movements related to other long term obligations held for sale. Auditor Firm ID Auditor Firm ID Minimum [Member] Minimum [Member] Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Segment Reporting, Revenue from External Customer, Product and Service [Table] Common Stock [Member] Common Stock [Member] Term Loan Facility, Variable Rate, due July 2025 Term Loan Facility [Member] Term Loan Facility [Member] Term loan facility. Long-Term Debt, Maturity, Year Two 2026 Senior Unsecured Notes Due January2028 [Member] Senior unsecured notes due January 2028. Senior Unsecured 5.000% Notes due January 2028 [Member] O 2022 Q4 Dividends [Member] O 2022 Q4 Dividends. Quarterly Cash Dividend Q4 2022 [Member] Fair Values of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Deferred Tax Assets Operating Loss And Tax Credit Carryforwards Deferred tax assets operating loss and tax credit carryforwards. Net operating loss and tax credit carryforwards Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Cash and cash equivalents Cumulative interest on award. Cumulative Interest On Award Cumulative interest on award Investment, Name [Axis] Outstanding, beginning period (in dollars per share) Outstanding, end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Derivative assets Long-term assets from risk management activities Derivative Asset Before Effects Of Master Netting Arrangements Noncurrent Fair value, before the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Senior Unsecured Notes Due2027 [Member] Senior unsecured notes due 2027. Senior Notes due 2027 [Member] Centrahoma Processing LLC. Centrahoma Processing LLC One [Member] Centrahoma Processing LLC [Member] Dividends in excess of retained earnings Adjustments To Additional Paid In Capital Preferred Stock Dividends In Excess Of Retained Earnings Adjustments to additional paid in capital preferred stock dividends in excess of retained earnings. Commodity hedging contracts: Other Comprehensive Income (Loss), Net of Tax [Abstract] Dividends in excess of retained earnings Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings Income Statement Location Statement of Income Location, Balance [Domain] Lessee, Operating Lease, Liability, to be Paid, Year One 2025 Other Assets, Noncurrent, Total Other long-term assets Other Assets, Noncurrent Additional income tax expense Additional Income Tax Expense Additional income tax expense. Distributions of earnings received from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution Segments Segments [Domain] Unpaid distributions Unpaid Distributions To Partner Unpaid distributions to partner. PSUs [Member] PSUs [Member] Performance Shares [Member] Natural Gas [Member] Natural Gas [Member] Reclassification to accrued liabilities Contract with customer liability reclassification to accrued liabilities. Contract With Customer Liability Reclassification To Accrued Liabilities Share Repurchase Program, Remaining Authorized, Amount Remaining share repurchase amount Other current assets Other Assets, Current Goodwill and Intangible Assets Disclosure [Abstract] Quarterly Cash Dividend Q3 2023 [Member] O 2023 Q3 Dividends [Member] O 2023 Q3 Dividends. Long-Term Debt, Current Maturities [Abstract] Current: Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Other Segment Items Other segment items. Other segment items Senior Unsecured Notes Due February 2035. Senior Unsecured Notes Due February 2035 [Member] Senior Unsecured 5.500% Fixed Rate, due February 2035 [Member] Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Total Equity, Attributable to Noncontrolling Interest Noncontrolling interests O 2024 Q2 dividends. O 2024 Q2 Dividends [Member] Quarterly Cash Dividend Q2 2024 [Member] Equity Distribution Agreement September 2018 [Member] Equity Distribution Agreement September Two Thousand Eighteen [Member] Equity distribution agreement September two thousand eighteen. Finite-Lived Intangible Asset, Expected Amortization, Year One 2025 Scenario Scenario [Domain] Title of Individual Title and Position [Domain] Tax Years 2018 through 2020 [Member] Tax Years2018 Through2020 [Member] Tax years 2018 through 2020. Amount of deferred gains to be reclassified into earnings before income taxes over next twelve months Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months Finance lease liabilities Finance Lease, Liability, Current Finance leases, Current liabilities Unpaid dividends Preferred Stock Unpaid Dividends Preferred stock unpaid dividends. Business Acquisition, Transaction Costs Professional and legal fees related to acquisition Preferred stock dividends, per share Preferred Stock, Dividends Per Share, Declared Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Gain (Loss) on Disposition of Assets, Total Total (gain) loss on sale or disposition of business and assets Gain (loss) on sale or disposal of assets Gain (Loss) on Disposition of Assets Gain (loss) on sale or disposition of assets (Gain) loss on sale or disposition of assets Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Derivative collateral amount Derivative Collateral Amount Derivative collateral amount. Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Revenue attributable to the assets acquired from the date of acquisition Senior unsecured note six point five zero zero percentage due two thousand fifty three. Senior unsecured note Six Point Five Zero Zero Percentage Due Two Thousand Fifty Three [Member] Senior Unsecured 6.500% Notes due 2053 [Member] Change in cash flow estimate Asset Retirement Obligation, Revision of Estimate Long-Term Debt, Maturity, Year Three 2027 Estimated potential loss Loss Contingency, Estimate of Possible Loss Loss contigency estimate of possible loss Operating Lease, Liability, Total Total lease liabilities Operating Lease, Liability Five Point One Two Five Percent Senior Unsecured Notes Due2025 [Member] Partnership 5.125% Senior Notes due 2025. 5.125% Senior Notes due 2025 [Member] TRGP Revolver [Member] T R G P Revolver [Member] TRGP revolver. Number of units, redeemed Partners' Capital Account, Units, Redeemed Commitments and Contingencies Commitments and Contingencies (see Notes 16 and 17) New Accounting Pronouncements Or Change In Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Current debt obligations Current debt obligations Debt Current Net Of Issuance Cost Debt current net of issuance cost. Premium over face value paid upon redemption Redemption Premium Inflation Reduction Act. Inflation Reduction Act [Member] Inflation Reduction Act [Member] Weighted average shares outstanding - diluted (in shares) Weighted average shares outstanding - diluted Weighted Average Number of Shares Outstanding, Diluted Significant Accounting Policies Significant Accounting Policies [Text Block] Reportable Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts Receivable, after Allowance for Credit Loss, Current Trade receivables, net of allowances Trade receivables, net of allowances of $2.5 million and $2.5 million as of December 31, 2024 and 2023 Options to extend lease term Lessee, Operating Lease, Renewal Term Repurchase of noncontrolling interests, net of tax Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Repurchase of noncontrolling interests, net of tax Total undiscounted cash flows Lessee, Operating Lease, Liability, to be Paid Increase (Decrease) in Inventories, Total Inventories Increase (Decrease) in Inventories Targa Badlands LLC [Member] Targa Badlands LLC. Targa Badlands LLC [Member] Cybersecurity Risk Management Third Party Engaged [Flag] O 2024 Q4 dividends. O 2024 Q4 Dividends [Member] Quarterly Cash Dividend Q4 2024 [Member] Distribution equivalent rights Distribution Equivalent Rights The equity impact of the distribution equivalent rights during the period. Vesting date Share Based Compensation Arrangement By Share Based Payment Award Vesting Month And Year Share based compensation arrangement by share based payment award vesting month and year. All States And Provinces All States And Provinces [Axis] All states and provinces. New TRGP Credit Agreement [Member] New TRGP credit agreement. Loss Contingency, Settlement Agreement, Date Award date Derivative assets Gross asset Fair value, before the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Debt obligations: Debt Obligations [Abstract] Debt obligations. Distribution to preferred unitholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Finance Lease, Liability, Total Total lease liabilities Finance Lease, Liability Finance Lease, Liability Senior unsecured notes six point one two five percent due two thousand twenty three. Senior Unsecured Note Six Point One Two Five Percent Due Two Thousand Twenty Three [Member] Senior Unsecured 6.125% Notes due 2023 [Member] Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Summary of Balances of Right of Use Assets and Liabilities of Finance Leases and Operating Leases Schedule Of Balances Of Right Of Use Assets And Liabilities Of Finance And Operating Leases Table [Text Block] Schedule of balances of right of use assets and liabilities of finance and operating leases. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Unvested restricted stock, term Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Retirements Asset Retirement Obligation, Liabilities Settled Debt Obligations Debt Disclosure [Text Block] Accounts receivable securitization facility due August 2025. Accounts Receivable Securitization Facility Due August 2025 [Member] Accounts Receivable Securitization Facility Due August 2025 [Member] Julie H. Boushka. Julie H. Boushka [Member] Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net, Total Gain (loss) reclassified from OCI into income (effective portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Former Permian Supersystem [Member] Former Permian Supersystem [Member] Former Permian Supersystem. Revenues, Total Revenues Total revenues Revenues Other comprehensive income (loss) Other Comprehensive Income Loss Other comprehensive income (loss). Derivative Liability, Total Pro forma net presentation, liability, total Liabilities from commodity derivative contracts Derivative liability Derivative liability New Accounting Pronouncements Or Change In Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Breakdown by Fair Value Hierarchy Category for Financial Instruments Included in Consolidated Balance Sheets Fair Value, by Balance Sheet Grouping [Table Text Block] Enbridge Inc. Enbridge Inc. [Member] Enbridge Inc. [Member] Credit Facility Credit Facility [Axis] Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Series A Preferred Stock dividends Dividends, Preferred Stock [Abstract] Derivative Liability [Abstract] Derivative Liability [Abstract] Other Long-term Liabilities Other Liabilities Disclosure [Text Block] Distributions Paid [Member] Dividend Paid [Member] Notional Volume of Commodity Hedges Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] In Aggregate Contractual Obligation Fees from Midstream Services [Member] Service [Member] Executive Management Executive Management [Member] Executive management. Contributions Contributions Equity Method Investments Contributions Equity method investments contributions. Accounts Receivable Securitization Facility Accounts Receivable Securitization Facility Policy [Text Block] Disclosure of accounting policy for securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. Derivative Assets, Noncurrent, Total Pro forma net presentation, asset, noncurrent Derivative Asset, Noncurrent Other Other Deferred Revenue [Member] Other deferred revenue. Finite lived iassets acquired customer attrition rate. Finite Lived Intangible Assets Acquired Customer Attrition Rate Customer attrition rate Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Internal Revenue Service (IRS) [Member] Internal Revenue Service (IRS) [Member] Unusual or Infrequent Item, or Both Unusual or Infrequent Item, or Both [Axis] Incremental Common Shares Attributable to Share-based Payment Arrangements, Total Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Dilutive effect of unvested restricted stock awards Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Derivative Instruments and Hedging Activities Disclosure [Abstract] Asset Retirement Obligation, Total Asset retirement obligations Beginning of period End of period Asset Retirement Obligation Senior Unsecured Notes [Member] Unsecured Debt [Member] State [Member] State and Local Jurisdiction [Member] Operating lease Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Commitments Commitments Disclosure [Text Block] Channelview Splitter [Member] Channelview Splitter [Member] Channelview Splitter. Entirety of Performance Period [Member] Share Based Compensation Award Tranche Eight [Member] Share based compensation award tranche eight. Deferred Tax Assets, Valuation Allowance, Total Valuation allowance Tax-effected valuation allowance Deferred Tax Assets, Valuation Allowance Preferred Stock, Shares Outstanding Temporary Equity, Shares Outstanding Proceeds from borrowings of commercial paper notes. Proceeds From Borrowings of Commercial Paper Notes Proceeds from borrowings of commercial paper notes Other liabilities Other Sundry Liabilities, Noncurrent Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Weighted-average remaining lease terms for operating leases Operating Lease, Weighted Average Remaining Lease Term Condensate and Crude Oil [Member] Oil and Condensate [Member] Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Cybersecurity Risk Management Positions or Committees Responsible [Flag] Accounts Payable, Current, Total Accounts payable Accounts Payable, Current Expire in 2037 [Member] Expire In 2037 [Member] Expire in 2037. Weighted-average grant-date fair value [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] New retention program. New retention program [Member] New Retention Program [Member] Pro Forma Impact of Derivatives Net in Consolidated Balance Sheet Pro Forma Impact Of Derivatives Net In Consolidated Balance Sheet Table [Text Block] Tabular disclosure of pro forma impact of derivatives net in the Consolidated Balance Sheet. Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Stock compensation shortfall/(windfall) 2022 Compensation Cycle [Member] Two Thousand And Twenty Two Compensation [Member] 2022 compensation cycle. Trade receivables, allowances Accounts Receivable, Allowance for Credit Loss, Current Settlements reclassified to revenues, after tax Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax Investments Deferred Tax Liabilities, Investment in Noncontrolled Affiliates Lease liabilities arising from recognition of right-of-use assets: Lease Liabilities Arising From Recognition Of Right Of Use Assets [Abstract] Lease liabilities arising from recognition of right-of-use assets. Short-term lease cost Short-Term Lease, Cost Debt instrument drawn amount Debt Instrument Drawn Amount Debt instrument drawn amount.