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Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Non-current operating lease liability (Note 10)	$ 316	$ 331
Casualty and other claims (Note 17)	218	170
Deferred compensation	91	109
Other	141	153
Total	1,759	1,879
Pension Benefits
Schedule of Investments [Line Items]
Defined benefit plan, obligations (Note 12)	255	338
Other Postretirement Benefits
Schedule of Investments [Line Items]
Defined benefit plan, obligations (Note 12)	204	244
Conrail
Schedule of Investments [Line Items]
Long-term advances from Conrail (Note 6)	$ 534	$ 534

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