XML 126 R91.htm IDEA: XBRL DOCUMENT v3.22.4
Expenses by Nature - Expenses Classified by Nature (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of products and services [line items]      
Mine depreciation $ 0 $ 190 $ 144
Total   511 472
Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories   17 15
Fuel and purchased power      
Disclosure of products and services [line items]      
Gas fuel costs 578 306 159
Coal fuel costs 141 164 269
Royalty, land lease, other direct costs 25 19 20
Purchased power 514 339 163
Mine depreciation 0 190 144
Salaries and benefits 5 36 50
Other operating expenses 0 0 0
Total 1,263 1,054 805
Fuel and purchased power | Coal (tonnes)      
Disclosure of products and services [line items]      
Mine depreciation   48 22
OM&A      
Disclosure of products and services [line items]      
Gas fuel costs 0 0 0
Coal fuel costs 0 0 0
Royalty, land lease, other direct costs 0 0 0
Purchased power 0 0 0
Mine depreciation 0 0 0
Salaries and benefits 263 234 235
Other operating expenses 258 277 237
Total $ 521 511 $ 472
Write-downs   $ 28