Income Taxes - Deferred Tax Assets and Liabilities Table (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax liabilities:
Property, plant and equipment	$ (295)	$ (253)
Derivative instruments	(166)	0
Deferred tax liabilities, Right Of Use Lease Asset	(25)	(30)
Other	(4)	(5)
Deferred tax liabilities	(490)	(288)
Deferred tax assets:
Net operating loss carryforwards	848	870
Carrying value of debt	25	29
Excess business interest expense carryforward	646	665
Capital loss carryforwards	78	101
Asset retirement obligations	65	91
Investments	1	11
Future lease payments	25	30
Accrued liabilities	15	21
Derivative instruments	0	137
Other	32	29
Deferred tax assets	1,735	1,984
Valuation allowance	(312)	(345)
Deferred tax assets after valuation allowance	1,423	1,639
Net deferred tax asset	$ 933	$ 1,351