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Leases - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases [Abstract]      
Gross rental expense $ 482 $ 503 $ 503
Sublease income 25 25 25
Gross rental income $ 1,000 $ 1,000 $ 1,200
Rental income as percentage of operating revenue (as a percent) 7.00% 7.00% 7.00%
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] OPERATING REVENUE OPERATING REVENUE OPERATING REVENUE