Income Taxes - Significant Components of Deferred Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Accrued postretirement benefits	$ 23	$ 34
Paddock-related liabilities		137
Foreign tax credit carryovers	149	161
Operating, capital loss and interest carryovers	284	255
Other credit carryovers	24	20
Accrued liabilities	72	54
Pension liabilities	24	19
Operating lease liabilities	54	28
Other	90	68
Total deferred tax assets	720	776
Deferred tax liabilities:
Property, plant, and equipment	128	114
Intangibles and deferred software	61	72
Operating lease right-of-use assets	53	28
Total deferred tax liabilities	242	214
Valuation allowance	(445)	(512)
Net deferred taxes	$ 33	$ 50