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Segments Disclosures - Reported Segment Earnings (Loss) and Segment Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of operating segments [line items] |  |  |
Revenues | $ 2,976 | $ 2,721 | $ 2,101
Fuel and purchased power | 1,263 | 1,054 | 805
Carbon compliance | 78 | 178 | 163
Gross margin | 1,635 | 1,489 | 1,133
OM&A |  | 511 | 472
Taxes, other than income taxes | 33 | 32 | 33
Net other operating (income) loss | (58) | 8 | (11)
Equity income | 9 | 9 | 1
Finance lease income | 19 | 25 | 7
Depreciation and amortization | (599) | (529) | (654)
Asset impairment charges | (9) | (648) | (84)
Net interest expense | 262 | 245 | 238
Foreign exchange gain | 4 | 16 | 17
Gain on sale of assets and other | 52 | 54 | 9
Earnings (loss) before income taxes | 353 | (380) | (303)
Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 2,976 | 2,721 | 2,101
Fuel and purchased power | 1,263 | 1,054 | 805
OM&A | 521 | 511 |
Net other operating (income) loss | (58) | 8 | (11)
Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 3,475 | 2,791 | 2,164
Fuel and purchased power | 1,259 | 843 | 618
Carbon compliance | 78 | 178 | 163
Gross margin | 2,138 | 1,770 | 1,383
OM&A |  | 491 | 472
Taxes, other than income taxes | 35 | 33 | 33
Net other operating (income) loss | (54) | (40) | (39)
Adjusted EBITDA | 1,634 | 1,286 | 917
Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 2,990 | 2,739 | 2,104
Fuel and purchased power | 1,263 | 1,054 | 805
OM&A | 523 | 513 |
Net other operating (income) loss | (61) | 8 | (11)
Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 378 | (34) | 42
Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 43 | 23 | (10)
Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 46 | 41 | 17
Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 19 | 25 | 7
Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (1) | (3) | 4
Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | (4) | (4) | (4)
Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 7 |  |
Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | (190) | (146)
Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | (17) | (37)
Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | (28) |
Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 6 |
Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | (48) |
Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | (28)
Material reconciling items |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (485) | (52) | (60)
Fuel and purchased power | 4 | 211 | 187
Carbon compliance | 0 | 0 | 0
Gross margin | (489) | (263) | (247)
OM&A |  | 22 | 0
Taxes, other than income taxes | 0 | 0 | 0
Net other operating (income) loss | (7) | 48 | 28
Material reconciling items | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Fuel and purchased power | 0 | 0 | 0
OM&A | 0 | 0 |
Net other operating (income) loss | 0 | 0 | 0
Material reconciling items | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (378) | 34 | (42)
Material reconciling items | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (43) | (23) | 10
Material reconciling items | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (46) | (41) | (17)
Material reconciling items | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (19) | (25) | (7)
Material reconciling items | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1 | 3 | (4)
Material reconciling items | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 4 | 4 | 4
Material reconciling items | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | (7) |  |
Material reconciling items | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 190 | 146
Material reconciling items | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 17 | 37
Material reconciling items | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 28 |
Material reconciling items | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | (6) |
Material reconciling items | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 48 |
Material reconciling items | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 28
Material reconciling items | Contribution from equity accounted investments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (14) | (18) | (3)
Fuel and purchased power | 0 | 0 | 0
Carbon compliance | 0 | 0 | 0
Gross margin | (14) | (18) | (3)
OM&A |  | (2) | 0
Taxes, other than income taxes | (2) | (1) | 0
Net other operating (income) loss | 3 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (14) | (18) | (3)
Fuel and purchased power | 0 | 0 | 0
OM&A | (2) | (2) |
Net other operating (income) loss | 3 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 0 |  |
Material reconciling items | Contribution from equity accounted investments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Material reconciling items | Contribution from equity accounted investments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Material reconciling items | Contribution from equity accounted investments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Material reconciling items | Contribution from equity accounted investments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 0 |
Material reconciling items | Contribution from equity accounted investments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 0
Hydro | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 607 | 383 | 152
Fuel and purchased power | 22 | 16 | 8
Carbon compliance | 0 | 0 | 0
Gross margin | 585 | 367 | 144
OM&A |  | 42 | 37
Taxes, other than income taxes | 3 | 3 | 2
Net other operating (income) loss | 0 | 0 | 0
Adjusted EBITDA | 527 | 322 | 105
Hydro | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 606 | 383 | 152
Fuel and purchased power | 22 | 16 | 8
OM&A | 55 | 42 |
Net other operating (income) loss | 0 | 0 | 0
Hydro | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1 | 0 | 0
Hydro | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Hydro | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Hydro | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Hydro | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Hydro | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Hydro | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 0 |  |
Hydro | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Hydro | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Hydro | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Hydro | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Hydro | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 0 |
Hydro | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 0
Wind and Solar | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 407 | 348 | 334
Fuel and purchased power | 31 | 17 | 25
Carbon compliance | 1 | 0 | 0
Gross margin | 375 | 331 | 309
OM&A |  | 59 | 53
Taxes, other than income taxes | 12 | 10 | 8
Net other operating (income) loss | (16) | 0 | 0
Adjusted EBITDA | 311 | 262 | 248
Wind and Solar | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 303 | 323 | 332
Fuel and purchased power | 31 | 17 | 25
OM&A | 68 | 59 |
Net other operating (income) loss | (23) | 0 | 0
Wind and Solar | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 104 | 25 | 2
Wind and Solar | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Wind and Solar | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Wind and Solar | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Wind and Solar | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Wind and Solar | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Wind and Solar | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 7 |  |
Wind and Solar | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Wind and Solar | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Wind and Solar | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Wind and Solar | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Wind and Solar | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 0 |
Wind and Solar | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 0
Gas | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1,521 | 1,126 | 848
Fuel and purchased power | 637 | 374 | 221
Carbon compliance | 83 | 118 | 120
Gross margin | 801 | 634 | 507
OM&A |  | 173 | 166
Taxes, other than income taxes | 15 | 13 | 13
Net other operating (income) loss | (38) | (40) | (39)
Adjusted EBITDA | 629 | 488 | 367
Gas | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1,209 | 1,109 | 787
Fuel and purchased power | 641 | 457 | 325
OM&A | 195 | 175 |
Net other operating (income) loss | (38) | (40) | (11)
Gas | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 251 | (40) | 33
Gas | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (4) | (6) | 0
Gas | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 46 | 41 | 17
Gas | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 19 | 25 | 7
Gas | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | (3) | 4
Gas | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | (4) | (4) | (4)
Gas | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 0 |  |
Gas | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | (79) | (100)
Gas | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Gas | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | (2) |
Gas | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Gas | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 0 |
Gas | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | (28)
Energy Transition |  |  |
Disclosure of operating segments [line items] |  |  |
Asset impairment charges |  | (191) |
Energy Transition | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 724 | 728 | 690
Fuel and purchased power | 566 | 432 | 352
Carbon compliance | (1) | 60 | 48
Gross margin | 159 | 236 | 290
OM&A |  | 97 | 106
Taxes, other than income taxes | 4 | 6 | 9
Net other operating (income) loss | 0 | 0 | 0
Adjusted EBITDA | 86 | 133 | 175
Energy Transition | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 714 | 709 | 704
Fuel and purchased power | 566 | 560 | 435
OM&A | 69 | 117 |
Net other operating (income) loss | 0 | 48 | 0
Energy Transition | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 10 | 19 | (14)
Energy Transition | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Transition | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Transition | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Transition | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Transition | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Energy Transition | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 0 |  |
Energy Transition | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | (111) | (46)
Energy Transition | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | (17) | (37)
Energy Transition | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | (26) |
Energy Transition | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 6 |
Energy Transition | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | (48) |
Energy Transition | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 0
Energy Marketing | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 218 | 202 | 133
Fuel and purchased power | 0 | 0 | 0
Carbon compliance | 0 | 0 | 0
Gross margin | 218 | 202 | 133
OM&A |  | 36 | 30
Taxes, other than income taxes | 0 | 0 | 0
Net other operating (income) loss | 0 | 0 | 0
Adjusted EBITDA | 183 | 166 | 103
Energy Marketing | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 160 | 211 | 122
Fuel and purchased power | 0 | 0 | 0
OM&A | 35 | 36 |
Net other operating (income) loss | 0 | 0 | 0
Energy Marketing | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 12 | (38) | 21
Energy Marketing | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 47 | 29 | (10)
Energy Marketing | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Marketing | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Energy Marketing | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (1) | 0 | 0
Energy Marketing | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Energy Marketing | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | 0 |  |
Energy Marketing | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Energy Marketing | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Energy Marketing | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Energy Marketing | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Energy Marketing | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | 0 |
Energy Marketing | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | 0
Corporate | Operating segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (2) | 4 | 7
Fuel and purchased power | 3 | 4 | 12
Carbon compliance | (5) | 0 | (5)
Gross margin | 0 | 0 | 0
OM&A |  | 84 | 80
Taxes, other than income taxes | 1 | 1 | 1
Net other operating (income) loss | 0 | 0 | 0
Adjusted EBITDA | (102) | (85) | (81)
Corporate | Operating segments | Previously Reported |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (2) | 4 | 7
Fuel and purchased power | 3 | 4 | 12
OM&A | 101 | 84 |
Net other operating (income) loss | 0 | 0 | 0
Corporate | Operating segments | Unrealized mark-to-market loss |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Corporate | Operating segments | Realized (gain) loss on closed exchange positions |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Corporate | Operating segments | Decrease in finance lease receivable |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Corporate | Operating segments | Finance lease income |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Corporate | Operating segments | Unrealized foreign exchange gain on commodity |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Corporate | Operating segments | Australian interest income |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power | 0 | 0 | 0
Corporate | Operating segments | Insurance recovery |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss | $ 0 |  |
Corporate | Operating segments | Mine depreciation |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Corporate | Operating segments | Coal inventory write-down |  |  |
Disclosure of operating segments [line items] |  |  |
Fuel and purchased power |  | 0 | 0
Corporate | Operating segments | Parts and materials write-down |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Corporate | Operating segments | Curtailment gain |  |  |
Disclosure of operating segments [line items] |  |  |
OM&A |  | 0 |
Corporate | Operating segments | Royalty onerous contract and contract termination penalties |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  | $ 0 |
Corporate | Operating segments | Impact of Sheerness going off-coal |  |  |
Disclosure of operating segments [line items] |  |  |
Net other operating (income) loss |  |  | $ 0

X
- Definition The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 28 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_28_e&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph B13 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B13_d&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 23 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_23_e&doctype=Standard -URIDate 2022-03-24 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_102&doctype=Standard -URIDate 2022-03-24 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_99&doctype=Standard -URIDate 2022-03-24 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_104&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of finance income on the net investment in the finance lease. [Refer: Finance income; Net investment in finance lease] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 90 -Subparagraph a -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_90_a_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2022-03-24 -Paragraph 52 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2022-en-r&anchor=para_52_a&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 35 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_35&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of revenue less cost of sales. [Refer: Cost of sales; Revenue] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_103&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of impairment loss or reversal of impairment loss recognised in profit or loss. [Refer: Impairment loss recognised in profit or loss; Reversal of impairment loss recognised in profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_99&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of income or expense arising from interest. [Refer: Interest expense; Interest income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 28 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_28_e&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_23&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustments to reconcile profit (loss) to net cash flow from (used in) operating activities that the entity does not separately disclose in the same statement or note. [Refer: Adjustments to reconcile profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
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