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Income Taxes - Significant Components of Deferred Taxes (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
Accrued postretirement benefits $ 34 $ 35
Paddock-related liabilities 137 107
Foreign tax credit carryovers 161 130
Operating, capital loss and interest carryovers 255 276
Other credit carryovers 20 19
Accrued liabilities 54 55
Pension liabilities 19 85
Operating lease liabilities 28 33
Other 68 46
Total deferred tax assets 776 786
Deferred tax liabilities:    
Property, plant, and equipment 114 112
Intangibles and deferred software 72 79
Operating lease right-of-use assets 28 33
Total deferred tax liabilities 214 224
Valuation allowance (512) (493)
Net deferred taxes $ 50 $ 69