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Right of Use Assets, Net - Summary of Right of Use Assets, Net (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | $ 1,139 | $ 1,325
Acquisition (Note 5A) | 1,132 |
Balance at end of period | 2,010 | 1,139
COST |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 1,502 | 1,492
Additions | 110 | 53
Terminations |  | (1)
Modifications | 22 | (2)
Reclassifications |  | (14)
Re-measurements | (4) | (2)
Exchange Rate Movements and Other | 28 | 24
Transfers to Assets Held for Sale (Note 16) | (78) |
Balance at end of period | 2,656 | 1,502
ACCUMULATED DEPRECIATION |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 363 | 167
Terminations | (3) | (1)
Exchange Rate Movements and Other | (24) | (21)
Depreciation | 323 | 215
Impairment Reversals (Note 10) | 11 | 3
Transfers to Assets Held for Sale (Note 16) | (24) |
Balance at end of period | 646 | 363
Real Estate |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 437 | 477
Balance at end of period | 500 | 437
Real Estate | COST |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 495 | 509
Additions | 4 | 1
Terminations |  | 0
Modifications | 1 | 0
Reclassifications |  | (14)
Re-measurements | (2) | 0
Exchange Rate Movements and Other | 5 | 1
Acquisition (Note 5A) | 99 |
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 592 | 495
Real Estate | ACCUMULATED DEPRECIATION |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 58 | 32
Terminations | 0 | 0
Exchange Rate Movements and Other | (4) | (1)
Depreciation | 38 | 27
Impairment Reversals (Note 10) | 0 | 0
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 92 | 58
Transportation And Storage Assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 684 | 831
Balance at end of period | 1,321 | 684
Transportation And Storage Assets | COST |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 977 | 959
Additions | 96 | 40
Terminations |  | (1)
Modifications | 20 | 1
Reclassifications |  | 0
Re-measurements | 1 | (1)
Exchange Rate Movements and Other | 18 | 21
Acquisition (Note 5A) | 765 |
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 1,841 | 977
Transportation And Storage Assets | ACCUMULATED DEPRECIATION |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 293 | 128
Terminations | (3) | (1)
Exchange Rate Movements and Other | (14) | (18)
Depreciation | 239 | 181
Impairment Reversals (Note 10) | 5 | 3
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 520 | 293
Manufacturing Assets |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 10 | 7
Balance at end of period | 128 | 10
Manufacturing Assets | COST |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 15 | 10
Additions | 7 | 5
Terminations |  | 0
Modifications | 1 | 0
Reclassifications |  | 0
Re-measurements | 0 | 0
Exchange Rate Movements and Other | 0 | 0
Acquisition (Note 5A) | 138 |
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 161 | 15
Manufacturing Assets | ACCUMULATED DEPRECIATION |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 5 | 3
Terminations | 0 | 0
Exchange Rate Movements and Other | 0 | 0
Depreciation | 23 | 2
Impairment Reversals (Note 10) | 5 | 0
Transfers to Assets Held for Sale (Note 16) | 0 |
Balance at end of period | 33 | 5
Retail and Other |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 8 | 10
Balance at end of period | 61 | 8
Retail and Other | COST |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 15 | 14
Additions | 3 | 7
Terminations |  | 0
Modifications | 0 | (3)
Reclassifications |  | 0
Re-measurements | (3) | (1)
Exchange Rate Movements and Other | 5 | 2
Acquisition (Note 5A) | 130 |
Transfers to Assets Held for Sale (Note 16) | (78) |
Balance at end of period | 62 | 15
Retail and Other | ACCUMULATED DEPRECIATION |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Balance at beginning of period | 7 | 4
Terminations | 0 | 0
Exchange Rate Movements and Other | (6) | (2)
Depreciation | 23 | 5
Impairment Reversals (Note 10) | 1 | 0
Transfers to Assets Held for Sale (Note 16) | (24) |
Balance at end of period | $ 1 | $ 7

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