XML 76 R61.htm IDEA: XBRL DOCUMENT v3.20.2
Leases - Other Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Other information          
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 14 $ 12 $ 40 $ 41  
Right-of-use assets obtained in exchange for lease liabilities: Operating leases $ 24 $ 11 $ 45 $ 178  
Weighted average remaining lease term (years): Operating leases 5 years   5 years   5 years 6 months
Weighted average discount rate: Operating leases 5.10%   5.10%   5.70%