Debt - Debt Covenants (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Coverage ratio of debt-to-EBITDA, maximum	5.00
Ratio of debt-to-EBITDA during acquisition period, maximum	5.50
Threshold for acquisition period qualification	$ 150
Outstanding letters of credit	90	$ 205
Credit Agreements and PAA Commercial Paper Program
Debt Instrument [Line Items]
Total borrowings	28,100	18,100	$ 25,000
Total repayments	$ 28,100	$ 17,700	$ 25,000
Letters of Credit | Maximum
Debt Instrument [Line Items]
Periods for which letters of credit are issued (in days)	70 days