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Revenue from Contracts With Customers - Disaggregation (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
segment
Jun. 30, 2019
USD ($)
Disaggregation of Revenue [Line Items]        
Number of reportable segments | segment     4  
Total net sales $ 2,801 $ 3,017 $ 5,586 $ 5,802
Point in Time        
Disaggregation of Revenue [Line Items]        
Total net sales 531 547 1,034 1,104
Over Time        
Disaggregation of Revenue [Line Items]        
Total net sales $ 2,270 $ 2,470 $ 4,552 $ 4,698