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Revenue Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Net sales $ 2,757 $ 2,755
Over time    
Disaggregation of Revenue [Line Items]    
Revenue from contract with customer 1,475 1,365
Point in time    
Disaggregation of Revenue [Line Items]    
Revenue from contract with customer $ 1,282 $ 1,390