Receivables - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Receivables, net
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Trade notes receivables	$ 52	$ 81
Bank notes without recourse
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Trade notes receivables	25	$ 37
Bank notes without recourse | CHINA
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Trade notes receivables	$ 3