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Other Non-Current Assets (Information) (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Notes to Consolidated Financial Statements [Abstract]    
Non-current inventories $ 117 $ 99
Surplus in employees' defined benefit plans 78 73
Financial derivatives 57 15
Investments in equity-accounted investees 29 30
Lease rights 0 102
Financial asset at amortized cost [1] 0 59
Other 5 9
Total other non-current assets $ 286 $ 387
[1] See Note 8B.