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Other Assets - Noncurrent Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Other Assets [Abstract]    
Deferred tax assets $ 54 $ 55
Contractually reimbursable engineering costs 35 31
Recoverable taxes 11 21
Royalty agreements 2 8
Joint venture notes receivable 0 7
Other 15 13
Other noncurrent assets $ 117 $ 135