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Long-Term Debt (Senior Notes) (Details) - USD ($) $ in Millions		2 Months Ended	12 Months Ended
		Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023		Dec. 31, 2022	May 03, 2024	Apr. 30, 2024
Debt Instrument [Line Items]
Credit Facility repayments			$ 3,449	$ 3,772		$ 3,808
NuStar Acquisition
Debt Instrument [Line Items]
Repayments of Senior Debt		$ 403
Credit Facility repayments		$ 455
Nustar
Debt Instrument [Line Items]
Senior notes							$ 2,570
5.75% Senior Notes due 2025, 6.00% Senor Notes due 2026, 5.625% Senior Notes due 2027, and 6.375% Senior Notes due 2030 | Nustar
Debt Instrument [Line Items]
Senior notes			$ 2,250
5.70% Senior Notes due 2025
Debt Instrument [Line Items]
Stated interest rate			5.75%
6.00% Senior Notes dur 2026
Debt Instrument [Line Items]
Stated interest rate			6.00%
5.625% senior notes due 2027
Debt Instrument [Line Items]
Stated interest rate			5.625%
5.375% Senior Notes due 2030
Debt Instrument [Line Items]
Stated interest rate			6.375%
7.0% Senior Notes due 2029
Debt Instrument [Line Items]
Senior notes								$ 750
Stated interest rate								7.00%
7.25% senior notes due 2032
Debt Instrument [Line Items]
Senior notes			$ 750	0	[1]			$ 750
Stated interest rate								7.25%
5.875% Senior Notes due 2028
Debt Instrument [Line Items]
Senior notes			$ 400	$ 400
Stated interest rate			5.875%
GoZone Bonds
Debt Instrument [Line Items]
Senior notes	[1]		$ 322
Debt Instrument, Redemption Price, Percentage			101.00%
[1] These senior notes and bonds, totaling $2.57 billion aggregate principal amount, were assumed by the Partnership in connection with the closing of the NuStar acquisition in May 2024.

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