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Leases (Schedule of Total Lease Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Leases [Abstract]      
Operating lease cost $ 13 $ 22 $ 25
Short-term lease cost [1] 193 140 89
Amortization of right-of-use assets 9 8 8
Interest on lease liabilities 15 11 11
Variable lease cost (5) 0 (4)
Lease income (10) (8) (8)
Net lease cost $ 225 $ 173 $ 121
[1] Short-term lease cost excludes leases with terms of one month or less.