Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Components of Deferred Tax Assets (Liabilities):
Carryforwards	$ 582	$ 375
Accrued and other	560	512
Total gross deferred tax assets	1,142	887
Less: valuation allowance	(25)	(40)
Deferred tax assets	1,117	847
Investment in partnership	(20,061)	(19,899)
Accrued and other	(10)	(6)
Deferred tax liabilities	(20,071)	(19,905)
Net deferred tax liabilities	(18,954)	(19,058)
Net deferred tax liabilities related to certain indirect subsidiaries that file separate income tax returns	$ 55	$ 54