XML 175 R158.htm IDEA: XBRL DOCUMENT v3.22.4
Non-controlling Interest In Subsidiaries (Non-controlling interest in subsidiaries) (Details) - CAD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Noncontrolling Interest [Line Items]    
Stockholders' Equity Attributable to Noncontrolling Interest $ 14 $ 34
Domlec    
Noncontrolling Interest [Line Items]    
Stockholders' Equity Attributable to Noncontrolling Interest 0 20
GBPC    
Noncontrolling Interest [Line Items]    
Noncontrolling Interest, Amount Represented by Preferred Stock $ 14 $ 14