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Commitments and Contingent Liabilities - Schedule of Current and Long-term Components of Accrued Litigation and Balance Sheet Locations (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accrued Litigation:    
Current accrued litigation $ 10 $ 11
Long-term accrued litigation 50 53
Total accrued litigation 60 64
Other Accrued Liabilities [Member]    
Accrued Litigation:    
Current accrued litigation 10 11
Other Liabilities [Member]    
Accrued Litigation:    
Long-term accrued litigation $ 50 $ 53