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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash Flow Statement [Abstract] |  |  |
Interest paid | $ 1,074 | $ 985 | $ 829
Income taxes paid | 262 | 172 | 179
Changes in non-cash working capital |  |  |
Accounts receivable | (190) | 284 | 42
Prepayments | (11) | (415) | (120)
Accounts payable and other | (323) | (89) | 146
Changes in non-cash working capital, net | (524) | (220) | 68
Changes in working capital related to the impact of investments in finance leases | $ 300 | $ 300 | $ 0

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