Income Taxes - Significant Components of Deferred Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Accrued postretirement benefits	$ 35	$ 34
Asbestos-related liabilities		102
Paddock-related liabilities	107
Foreign tax credit carryovers	130	117
Operating, capital loss and interest carryovers	276	272
Other credit carryovers	19	18
Accrued liabilities	55	67
Pension liabilities	85	91
Operating lease liabilities	33	50
Other	46	27
Total deferred tax assets	786	778
Deferred tax liabilities:
Property, plant, and equipment	112	112
Intangibles and deferred software	79	86
Operating lease right-of-use assets	33	50
Total deferred tax liabilities	224	248
Valuation allowance	(493)	(462)
Net deferred taxes	$ 69	$ 68