Income Taxes - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income before tax	$ 1,614	$ 1,409	$ 712
Net income attributable to noncontrolling interests	(1,227)	(995)	(540)
Income taxes attributable to noncontrolling interests	(121)	(189)	(73)
Income/(loss) before tax after deducting net income and taxes attributable to noncontrolling interest	$ 266	$ 225	$ 99
Federal statutory income tax rate	21.00%	21.00%	21.00%
Income tax expense at statutory rate	$ 56	$ 47	$ 21
Deferred tax rate adjustment	9	7	17
State income tax, net of federal benefit	3	3	1
Income taxes attributable to noncontrolling interests:
Canadian federal and provincial income tax	119	188	71
State income tax	2	1	2
Total income tax expense	$ 189	$ 246	$ 112