v3.20.1
Employee Benefit Plans - Severances (Details)
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
Restructuring Cost and Reserve [Line Items]  
Beginning Balance $ 23
Increase (Decrease) in Restructuring Reserve 5
Payments for Restructuring 4
Restructuring Reserve, Foreign Currency Translation Gain (Loss) (4)
Ending Balance 20
Employee Severance [Member] | Short term supplemental unemployment benefits [Member]  
Restructuring Cost and Reserve [Line Items]  
Ending Balance $ 6