Income Taxes (Reconciliation of Income Tax Expense) (Details) $ in Millions, $ in Millions |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Sep. 15, 2021
CAD ($)
|
Sep. 15, 2021
USD ($)
|
Dec. 31, 2022
CAD ($)
|
Dec. 31, 2021
CAD ($)
|
Dec. 31, 2020
CAD ($)
|
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| Income tax expense reconciliation | |||||||||
| Canadian statutory federal tax rate | 15.00% | 15.00% | 15.00% | ||||||
| Income tax expense at the Canadian statutory federal tax rate | $ 1,014 | $ 951 | $ 678 | ||||||
| Income tax expense resulting from: | |||||||||
| Provincial and foreign taxes | 657 | 617 | 414 | ||||||
| Income tax adjustments due to rate enactments and tax law changes | 0 | 0 | (141) | ||||||
| Non-taxable portion of merger termination fee | 0 | (116) | 0 | ||||||
| Other | (26) | (9) | 25 | ||||||
| Income tax expense | 1,645 | 1,443 | [1] | 976 | [1] | ||||
| Net cash payments for income taxes | 1,288 | 759 | 353 | ||||||
| Merger termination fee | $ 0 | $ 886 | $ 0 | ||||||
| Kansas City Southern [Member] | |||||||||
| Income tax expense resulting from: | |||||||||
| Merger termination fee | $ 886 | $ 700 | |||||||
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