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FAIR VALUE OF FINANCIAL INSTRUMENTS - Valuation Techniques on Fair Value Measurements (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | $ 61,175 | $ 44,558
Financial liabilities | (261,308) | (227,064)
Level 2 |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 9,462 | 8,743
Financial liabilities | (4,910) | (4,285)
Level 2 | Accounts payable and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (4,469) | (4,150)
Level 2 | Accounts payable and other | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (4,469) |
Level 2 | Redeemable fund units (subsidiary equity obligations) |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (441) | (135)
Level 2 | Redeemable fund units (subsidiary equity obligations) | Market approach |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (441) |
Level 2 | Accounts receivable and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 3,731 | 2,265
Level 2 | Other financial assets | Market approach |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 5,731 |
Level 2 | Fixed income securities and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 2,099 | 1,908
Level 2 | Corporate bonds |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 1,754 | 2,050
Level 2 | Common shares and warrants |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 377 | 548
Level 3 |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 5,831 | 2,232
Financial liabilities | (3,092) | (2,714)
Level 3 | Accounts payable and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (2,419) | (1,311)
Level 3 | Accounts payable and other | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (2,419) |
Level 3 | Redeemable fund units (subsidiary equity obligations) |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (673) | (1,403)
Level 3 | Redeemable fund units (subsidiary equity obligations) | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial liabilities | (673) |
Level 3 | Accounts receivable and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 6 | 77
Level 3 | Fixed income securities and other |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 3,376 | 451
Level 3 | Fixed income securities and other | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 3,376 |
Level 3 | Corporate bonds |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets |  | 383
Level 3 | Corporate bonds | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 324 |
Level 3 | Common shares and warrants |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 2,120 | $ 1,316
Level 3 | Common shares and warrants | Black-Scholes model |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | 2,120 |
Level 3 | Accounts receivable and other | Discounted cash flows |  |
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurements Of Assets And Liabilities [Table] [Line Items] |  |
Financial assets | $ 6 |

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