Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Details)

v3.20.4
Debt - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Senior Secured Revolving Credit Facility    
Debt Instrument [Line Items]    
Maximum consolidated leverage ratio 5.0  
Carrying value $ 649 $ 0
Senior Notes | 1.75% Senior Notes Due 2020    
Debt Instrument [Line Items]    
Stated interest rate (as a percent) 1.75%  
Carrying value $ 0 1
Senior Notes | 1.75% Senior Notes Due 2023    
Debt Instrument [Line Items]    
Stated interest rate (as a percent) 1.75%  
Shares issued (shares per thousand dollars) 0.1519533  
Carrying value $ 170 $ 163