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CAPITAL MANAGEMENT - Changes in Invested Capital (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Changes in Invested capital [Roll Forward]    
Opening balance $ 13,032 $ 12,281
Net redemption of preferred units (72) 0
Issuance of limited partnership units, net of redemptions 11 0
Issuance of BIPC exchangeable LP Units 0 751
Ending balance 12,971 13,032
Weighted Average Invested Capital $ 13,032 $ 12,478