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FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value Hierarchy Levels (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | $ 44,558 | $ 41,335
Financial liabilities | 227,064 | 197,540
Other financial assets |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 16,546 | 17,730
Level 1 |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 4,961 | 5,664
Financial liabilities | 29 | 75
Level 1 | Other financial assets |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 4,958 | 5,614
Level 1 | Accounts payable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 29 | 75
Level 1 | Subsidiary equity obligations |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 0 | 0
Level 1 | Government bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 48 | 7
Level 1 | Corporate bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 85 | 192
Level 1 | Fixed income securities and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 762 | 867
Level 1 | Common shares and warrants |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 4,063 | 4,548
Level 1 | Loans and notes receivables |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 0 | 0
Level 1 | Accounts receivable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 3 | 50
Level 2 |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 8,743 | 8,520
Financial liabilities | 4,285 | 5,167
Level 2 | Other financial assets |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 6,478 | 6,939
Level 2 | Accounts payable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 4,150 | 5,090
Level 2 | Subsidiary equity obligations |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 135 | 77
Level 2 | Government bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 1,972 | 2,644
Level 2 | Corporate bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 2,050 | 2,764
Level 2 | Fixed income securities and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 1,908 | 912
Level 2 | Common shares and warrants |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 548 | 577
Level 2 | Loans and notes receivables |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 0 | 42
Level 2 | Accounts receivable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 2,265 | 1,581
Level 3 |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 2,232 | 2,369
Financial liabilities | 2,714 | 2,104
Level 3 | Other financial assets |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 2,155 | 2,234
Level 3 | Accounts payable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 1,311 | 724
Level 3 | Subsidiary equity obligations |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial liabilities | 1,403 | 1,380
Level 3 | Government bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 0 | 0
Level 3 | Corporate bonds |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets |  | 286
Level 3 | Fixed income securities and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 451 | 491
Level 3 | Common shares and warrants |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 1,316 | 1,389
Level 3 | Loans and notes receivables |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | 5 | 68
Level 3 | Accounts receivable and other |  |
Disclosure of carrying value and fair value of assets and liabilities |  |
Financial assets | $ 77 | $ 135

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