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Hedging Activities and Fair Value Measurements, Gains and Losses on Derivative Instruments and Related Hedged Items (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized gains (losses) $ (78) $ 27 $ 79
NGL Pipelines & Services [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized gains (losses) (52) 40 48
Crude Oil Pipelines & Services [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized gains (losses) (30) (3) 20
Natural Gas Pipelines & Services [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized gains (losses) (3) (2) 6
Petrochemical & Refined Products Services [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Unrealized gains (losses) 7 (8) 5
Derivatives in fair value hedging relationships [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Derivative (103) (243) (88)
Gain (Loss) Recognized in Income on Hedged Item 66 226 168
Derivatives in fair value hedging relationships [Member] | Commodity derivatives [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Derivative $ (103) $ (243) $ (88)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Revenues Revenues Revenues
Derivatives in fair value hedging relationships [Member] | Commodity derivatives [Member] | Revenue [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Hedged Item $ 66 $ 226 $ 168
Derivatives in cash flow hedging relationships [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in Value Recognized in Other Comprehensive Income (Loss) on Derivative 280 (495) (3)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) to Income 201 (946) 234
Derivatives in cash flow hedging relationships [Member] | Interest rate derivatives [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in Value Recognized in Other Comprehensive Income (Loss) on Derivative 26 183 (127)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) to Income $ (19) $ (38) $ (39)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] Interest expense Interest expense Interest expense
Accumulated other comprehensive income related to interest rate derivative instruments expected to be reclassified to earnings in interest expense over the next twelve months $ 2    
Derivatives in cash flow hedging relationships [Member] | Commodity derivatives [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Accumulated other comprehensive income (loss) related to commodity derivative instruments expected to be reclassified to earnings over the next twelve months 188    
Accumulated other comprehensive income (loss) related to commodity derivative instruments expected to be reclassified to revenue over the next twelve months 206    
Accumulated other comprehensive income (loss) related to commodity derivative instruments expected to be reclassified to operating costs and expenses over the next twelve months (18)    
Derivatives in cash flow hedging relationships [Member] | Commodity derivatives [Member] | Revenue [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in Value Recognized in Other Comprehensive Income (Loss) on Derivative [1] 227 $ (658) $ 134
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) to Income 181 (893) 283
Derivatives in cash flow hedging relationships [Member] | Commodity derivatives [Member] | Operating costs and expenses [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in Value Recognized in Other Comprehensive Income (Loss) on Derivative [1] 27 (20) (10)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) to Income 39 (15) (10)
Derivatives not designated as hedging instruments [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Derivative 88 151 166
Derivatives not designated as hedging instruments [Member] | Commodity derivatives [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized gains (losses) 136    
Unrealized gains (losses) (48)    
Derivatives not designated as hedging instruments [Member] | Commodity derivatives [Member] | Revenue [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Derivative 74 150 166
Derivatives not designated as hedging instruments [Member] | Commodity derivatives [Member] | Operating costs and expenses [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (Loss) Recognized in Income on Derivative $ 14 $ 1 $ 0
[1] The fair value of these derivative instruments will be reclassified to their respective locations on the Statement of Consolidated Operations when the forecasted transactions affect earnings.