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Investments in Affiliates - Schedule of Changes in Investments in Affiliates (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]      
Beginning Balance $ 162 $ 160 $ 173
Equity in earnings of affiliates 23 29 43
Dividends (25) (28) (58)
Currency translation and other 7 1 2
Ending Balance $ 167 $ 162 $ 160