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FINANCIAL INSTRUMENTS - Other Derivatives (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]          
Fair value of financial assets $ 7,004   $ 7,004   $ 7,068
Fair value of financial liabilities (58,228)   (58,228)   (62,406)
Gains (losses) on change in fair value of derivatives (297) $ (34) 110 $ 133  
Forward starting interest rate swap          
Disclosure of detailed information about financial instruments [line items]          
Gains (losses) on change in fair value of derivatives 0 $ (3) 0 $ (3)  
Interest rate risk | Interest rate caps          
Disclosure of detailed information about financial instruments [line items]          
Notional 4,420   4,420   5,388
Fair value of financial assets $ 4   $ 4   $ 0
Interest rate risk | Interest rate caps | Bottom of range          
Disclosure of detailed information about financial instruments [line items]          
Rates 2.00%   2.00%   2.00%
Interest rate risk | Interest rate caps | Top of range          
Disclosure of detailed information about financial instruments [line items]          
Rates 790.00%   790.00%   790.00%
Interest rate risk | Interest rate swaps on forecasted fixed rate debt          
Disclosure of detailed information about financial instruments [line items]          
Notional $ 335   $ 335   $ 1,285
Fair value of financial liabilities $ (38)   $ (38)   $ (253)
Interest rate risk | Interest rate swaps on forecasted fixed rate debt | Bottom of range          
Disclosure of detailed information about financial instruments [line items]          
Rates 3.60%   3.60%   3.20%
Interest rate risk | Interest rate swaps on forecasted fixed rate debt | Top of range          
Disclosure of detailed information about financial instruments [line items]          
Rates 530.00%   530.00%   640.00%
Interest rate risk | Interest rate swaps of US$ debt          
Disclosure of detailed information about financial instruments [line items]          
Notional         $ 1,696
Fair value of financial liabilities         $ (8)
Interest rate risk | Interest rate swaps of US$ debt | Bottom of range          
Disclosure of detailed information about financial instruments [line items]          
Rates         0.80%
Interest rate risk | Interest rate swaps of US$ debt | Top of range          
Disclosure of detailed information about financial instruments [line items]          
Rates         510.00%