Annual report pursuant to Section 13 and 15(d)

Leases - Supplemental Information (Details)

v3.20.4
Leases - Supplemental Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash outflows from operating leases $ 26 $ 26
Operating cash outflows from finance lease 4 4
Financing cash outflows from finance lease 6 5
Right-of-use assets obtained in exchange for lease liabilities:    
Operating leases $ 4 106
Finance lease   $ 88
Weighted-average remaining lease term    
Operating leases weighted average remaining lease term (in years) 3 years 8 months 12 days 4 years 4 months 24 days
Finance lease weighted average remaining lease term (in years) 10 years 11 years
Weighted-average discount rate    
Operating leases weighted average discount rate 3.99% 4.11%
Finance lease weighted average discount rate 4.49% 4.49%