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FINANCIAL RISK MANAGEMENT - Sensitivity Analysis for Foreign Currency Risk (Details) - Foreign currency risk - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
AUD      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Pre-tax income attributable to unitholders, 10% decrease $ (1) $ 12 $ 6
Pre-tax income attributable to unitholders, 10% increase 1 (12) (6)
OCI attributable to unitholders, before taxes, 10% decrease (85) (85) (86)
OCI attributable to unitholders, before taxes, 10% increase 85 85 86
CAD      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Pre-tax income attributable to unitholders, 10% decrease (4) (1) 25
Pre-tax income attributable to unitholders, 10% increase 4 1 (25)
OCI attributable to unitholders, before taxes, 10% decrease (146) (36) (120)
OCI attributable to unitholders, before taxes, 10% increase 146 36 120
Brazilian real      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Pre-tax income attributable to unitholders, 10% decrease 0 21 0
Pre-tax income attributable to unitholders, 10% increase 0 (21) 0
OCI attributable to unitholders, before taxes, 10% decrease (48) (83) (40)
OCI attributable to unitholders, before taxes, 10% increase 48 83 40
EUR      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Pre-tax income attributable to unitholders, 10% decrease 94 324 53
Pre-tax income attributable to unitholders, 10% increase (94) (324) (53)
OCI attributable to unitholders, before taxes, 10% decrease (92) 4 (29)
OCI attributable to unitholders, before taxes, 10% increase 92 (4) 29
Other      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Pre-tax income attributable to unitholders, 10% decrease 71 (74) (108)
Pre-tax income attributable to unitholders, 10% increase (71) 74 108
OCI attributable to unitholders, before taxes, 10% decrease (121) (108) (72)
OCI attributable to unitholders, before taxes, 10% increase $ 121 $ 108 $ 72