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CAPITAL STOCK - Performance Program Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2018
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares authorized and available for grant (in shares)             10,100,000    
Compensation expense             $ 304 $ 157 $ 40
Stock-settled and cash-settled compensation capitalized             $ 44 $ 18 $ 7
Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)             2,568,000 4,441,000 3,462,000
Phantom Units | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares) 1,950,332                
Performance Program                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares vesting period             3 years    
Compensation expense             $ 143 $ 57 $ (8)
Stock-settled and cash-settled compensation capitalized             $ 21 $ 3 $ (1)
Performance Program | Vesting, Tranche One                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares vesting percentage             50.00%    
Performance Program | Vesting, Tranche Two                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares vesting percentage             50.00%    
2018 Performance Program | Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)           931,049      
Total awards, outstanding (in shares)             23,633    
Shares paid out as percentage of target             23.00%    
2019 Performance Program | Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)         1,679,832        
Total awards, outstanding (in shares)             604,417    
Shares paid out as percentage of target             10000.00%    
2020 Performance Program | Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)       1,687,307          
Total awards, outstanding (in shares)             1,311,715    
Shares paid out as percentage of target             155.00%    
2021 Performance Program | Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)     1,959,856            
Total awards, outstanding (in shares)             1,826,890    
2021 Performance Program | Phantom Units | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Percentage of shares awarded of target     0.00%            
Shares authorized and available for grant (in shares)             0    
2021 Performance Program | Phantom Units | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Percentage of shares awarded of target     200.00%            
Shares authorized and available for grant (in shares)             3,653,780    
2022 Performance Program | Phantom Units                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares)   1,093,034              
Total awards, outstanding (in shares)             1,068,530    
2022 Performance Program | Phantom Units | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Percentage of shares awarded of target     0.00%            
Shares authorized and available for grant (in shares)             0    
2022 Performance Program | Phantom Units | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Percentage of shares awarded of target     200.00%            
Shares authorized and available for grant (in shares)             2,137,060    
2023 Performance Program | Vesting, Tranche One | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares allocation percentage 40.00%                
Shares vesting period 3 years                
2023 Performance Program | Vesting, Tranche Two | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares allocation percentage 60.00%                
2023 Performance Program | Phantom Units | Vesting, Tranche One | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Weighted average grant date fair value per share (in USD per share) $ 62.15                
2023 Performance Program | Phantom Units | Vesting, Tranche Two | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Awards granted during period (in shares) 797,429                
Weighted average grant date fair value per share (in USD per share) $ 44.06                
2023 Performance Program | Phantom Units | Minimum | Vesting, Tranche Two | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares authorized and available for grant (in shares) 0                
2023 Performance Program | Phantom Units | Maximum | Vesting, Tranche Two | Subsequent Event                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares authorized and available for grant (in shares) 1,594,858