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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Carrying and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Disclosure of financial assets [line items]    
Financial assets, carrying value $ 62,599 $ 61,175
Financial assets, at fair value 62,599 61,175
Disclosure of financial liabilities [line items]    
Financial liabilities 273,112 266,821
Financial liabilities 268,960 261,308
Corporate borrowings    
Disclosure of financial liabilities [line items]    
Financial liabilities 13,618 11,390
Financial liabilities 11,920 9,599
Property-specific borrowings    
Disclosure of financial liabilities [line items]    
Financial liabilities 189,798 187,544
Financial liabilities 187,709 184,254
Subsidiary borrowings    
Disclosure of financial liabilities [line items]    
Financial liabilities 16,287 15,140
Financial liabilities 15,922 14,708
Property-specific borrowings and subsidiary borrowings [Member]    
Disclosure of financial liabilities [line items]    
Financial liabilities 206,085 202,684
Financial liabilities 203,631 198,962
Accounts payable and other    
Disclosure of financial liabilities [line items]    
Financial liabilities 49,360 48,559
Financial liabilities 49,360 48,559
Subsidiary equity obligations    
Disclosure of financial liabilities [line items]    
Financial liabilities 4,049 4,188
Financial liabilities 4,049 4,188
Equity investments [member]    
Disclosure of financial assets [line items]    
Financial assets, carrying value 7,441 6,472
Financial assets, at fair value 7,441 6,472
Loans and notes receivables    
Disclosure of financial assets [line items]    
Financial assets, carrying value 8,422 7,952
Financial assets, at fair value 8,422 7,952
Cash And Cash Equivalents1    
Disclosure of financial assets [line items]    
Financial assets, carrying value 12,427 14,396
Financial assets, at fair value 12,427 14,396
Other financial assets    
Disclosure of financial assets [line items]    
Financial assets, carrying value 29,466 26,899
Financial assets, at fair value 29,466 26,899
Trade receivables and other [Member]    
Disclosure of financial assets [line items]    
Financial assets, carrying value 20,706 19,880
Financial assets, at fair value 20,706 19,880
Loans to government [member]    
Disclosure of financial assets [line items]    
Financial assets, carrying value 1,621 1,566
Financial assets, at fair value 1,621 1,566
Loans to corporate entities [member]    
Disclosure of financial assets [line items]    
Financial assets, carrying value 2,695 2,147
Financial assets, at fair value 2,695 2,147
Fixed income securities and other    
Disclosure of financial assets [line items]    
Financial assets, carrying value 9,287 8,762
Financial assets, at fair value $ 9,287 $ 8,762