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Current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Related Party Transaction [Line Items] |  |
Accounts and wages payable | $ 850 | $ 552
Casualty and other claims (Note 17) | 166 | 182
Vacation liability | 119 | 121
Other | 104 | 105
Total | 1,351 | 1,016
Interest payable | 150 | 141
Current operating lease liability (Note 10) | 82 | 89
Other | 60 | 53
Total | 312 | 302
Pension Benefits |  |
Related Party Transaction [Line Items] |  |
Pension benefit obligations (Note 12) | 20 | 19
Conrail |  |
Related Party Transaction [Line Items] |  |
Due to Conrail (Note 6) | $ 112 | $ 56

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