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Income Taxes - Narratives (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Examination      
Income taxes receivable $ 132 $ 147  
Net operating loss carryforwards 194 221  
Unrecognized tax benefits 54 44 $ 45
Unrecognized tax benefits that would impact tax rate 47 38  
Tax benefits interest expense for unpaid taxes 3 3 $ 3
Unrecognized tax benefits interest and penalties accrued 16 15  
Federal and State      
Income Tax Examination      
Net operating loss carryforwards 69 90  
State      
Income Tax Examination      
Valuation allowance against net operating loss deferred tax assets 41 48  
Foreign      
Income Tax Examination      
Foreign net operating loss carryforwards resulting in deferred tax assets $ 125 $ 131