v3.22.4
Income Taxes (Significant Components of Deferred Income Tax Assets and Liabilities) (Details) - CAD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Deferred income tax assets    
Lease liabilities $ 132 $ 120
Pension liability 93 117
Personal Injury & legal claims 61 61
Unrealized foreign exchange losses 61 0
Net operating losses and tax credit carryforwards 46 58
Compensation reserves 45 47
Other postretirement benefits liability 38 56
Other 53 68
Total deferred income tax assets 529 527
Deferred income tax liabilities    
Properties 9,296 8,694
Pension asset 794 799
Operating lease right-of-use assets 117 111
Unrealized foreign exchange gains 0 55
Other 118 171
Total deferred income tax liabilities 10,325 9,830
Total net deferred income tax liability 9,796 9,303
Total net deferred income tax liability    
Domestic 5,614 5,515
Foreign 4,182 $ 3,788
Net interest expense deduction carryforward 130  
State and Local Jurisdiction [Member]    
Total net deferred income tax liability    
Net operating loss carryforwards $ 231