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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Market Risk (Details)
3 Months Ended 12 Months Ended
Mar. 08, 2023
USD ($)
Mar. 31, 2023
CAD ($)
Dec. 31, 2023
USD ($)
stock-based_compensation_form
Dec. 31, 2023
CAD ($)
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Principal amount     $ 8,500,000,000 $ 3,900,000,000
Three-Year Fixed Rate Notes | Notes Payable, Other Payables        
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Principal amount $ 700,000,000      
Term of credit facility 3 years      
Foreign exchange contracts        
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Derivative instruments not designated as hedging instruments, loss   $ 638,000,000    
Interest rate contracts - short-term borrowings        
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Policy limit increase (as a percent)     30.00% 30.00%
Derivative, average fixed interest rate     4.10% 4.10%
Derivative, fixed interest rate 6.00%      
Floating-To-Fixed Interest Rate Swaps        
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Derivative, average fixed interest rate     3.50% 3.50%
Equity contracts        
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS        
Number of types of equity | stock-based_compensation_form     1