Annual report pursuant to Section 13 and 15(d)

Leases - Supplemental Information (Details)

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Leases - Supplemental Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:      
Operating cash outflows from operating leases $ 25 $ 26 $ 26
Operating cash outflows from finance lease 3 4 4
Financing cash outflows from finance lease 6 6 5
Right-of-use assets obtained in exchange for lease liabilities:      
Operating leases $ 6 $ 4 106
Finance lease     $ 88
Weighted-average remaining lease term      
Operating leases weighted average remaining lease term (in years) 3 years 3 years 8 months 12 days  
Finance lease weighted average remaining lease term (in years) 9 years 10 years  
Weighted-average discount rate      
Operating leases weighted average discount rate 3.71% 3.99%  
Finance lease weighted average discount rate 4.49% 4.49%