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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance $ 34,234 $ 29,775 $ 35,540 $ 29,853
Other comprehensive income (loss) (100) 694 (17) 940
Other items (16) [1] 6 [2],[3] (2) [4] 6 [5]
Ending balance 32,523 29,649 32,523 29,649
Limited Partners | Accumulated other comprehensive income        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1,211 778
Other comprehensive income (loss)     68 145
Other items     (2) (46)
Ending balance 1,277 877 1,277 877
Limited Partners | Revaluation surplus        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1,395 1,167
Other comprehensive income (loss)     2 1
Other items     0 (41)
Ending balance 1,397 1,127 1,397 1,127
Limited Partners | Foreign currency translation        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     (1,400) (1,934)
Other comprehensive income (loss)     (4) 515
Other items     (2) 6
Ending balance (1,406) (1,413) (1,406) (1,413)
Limited Partners | Net investment hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     20 124
Other comprehensive income (loss)     (25) (109)
Other items     0 (1)
Ending balance (5) 14 (5) 14
Limited Partners | Cash flow hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     54 53
Other comprehensive income (loss)     12 (13)
Other items     0 0
Ending balance 66 40 66 40
Limited Partners | Marketable securities        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     122 122
Other comprehensive income (loss)     0 0
Other items     0 0
Ending balance 122 122 122 122
Limited Partners | Unrealized actuarial gains        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     3 5
Other comprehensive income (loss)     (2) 0
Other items     0 0
Ending balance 1 5 1 5
Limited Partners | Equity accounted investments        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1,017 1,241
Other comprehensive income (loss)     85 (249)
Other items     0 (10)
Ending balance 1,102 982 1,102 982
General partner        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance 24 26 25 27
Other items 2 [1] (2) [2],[3] 3 [4] (2) [5]
Ending balance 24 23 24 23
General partner | Accumulated other comprehensive income        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     7 5
Other comprehensive income (loss)     0 0
Other items     1 (1)
Ending balance 8 4 8 4
General partner | Revaluation surplus        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     8 6
Other comprehensive income (loss)     0 0
Other items       0
Ending balance 8 6 8 6
General partner | Foreign currency translation        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     (10) (11)
Other comprehensive income (loss)     0 1
Other items     1 1
Ending balance (9) (9) (9) (9)
General partner | Net investment hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1 1
Other comprehensive income (loss)     0 0
Other items       0
Ending balance 1 1 1 1
General partner | Cash flow hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     0 0
Other comprehensive income (loss)     0 0
Other items       0
Ending balance 0 0 0 0
General partner | Marketable securities        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1 1
Other comprehensive income (loss)     0 0
Other items       0
Ending balance 1 1 1 1
General partner | Unrealized actuarial gains        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     0 0
Other comprehensive income (loss)     0 0
Other items       0
Ending balance 0 0 0 0
General partner | Equity accounted investments        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     7 8
Other comprehensive income (loss)     0 (1)
Other items       (2)
Ending balance 7 5 7 5
Redeemable Partnership Units held by Brookfield        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance 1,917 1,876 2,017 1,926
Other comprehensive income (loss) (6) 35 27 59
Other items 23 [1] 8 [2],[3] 16 [4] 8 [5]
Ending balance 1,834 1,830 1,834 1,830
Redeemable Partnership Units held by Brookfield | Accumulated other comprehensive income        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     500 319
Other comprehensive income (loss)     27 59
Other items     1 (18)
Ending balance 528 360 528 360
Redeemable Partnership Units held by Brookfield | Revaluation surplus        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     579 481
Other comprehensive income (loss)     0 0
Other items     0 (17)
Ending balance 579 464 579 464
Redeemable Partnership Units held by Brookfield | Foreign currency translation        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     (580) (797)
Other comprehensive income (loss)     (1) 210
Other items     1 3
Ending balance (580) (584) (580) (584)
Redeemable Partnership Units held by Brookfield | Net investment hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     7 50
Other comprehensive income (loss)     (11) (45)
Other items     0 1
Ending balance (4) 6 (4) 6
Redeemable Partnership Units held by Brookfield | Cash flow hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     23 22
Other comprehensive income (loss)     6 (5)
Other items     0 0
Ending balance 29 17 29 17
Redeemable Partnership Units held by Brookfield | Marketable securities        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     50 50
Other comprehensive income (loss)     0 0
Other items     0 0
Ending balance 50 50 50 50
Redeemable Partnership Units held by Brookfield | Unrealized actuarial gains        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     2 3
Other comprehensive income (loss)     (1) 0
Other items     0 (1)
Ending balance 1 2 1 2
Redeemable Partnership Units held by Brookfield | Equity accounted investments        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     419 510
Other comprehensive income (loss)     34 (101)
Other items     0 (4)
Ending balance 453 405 453 405
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Accumulated other comprehensive income        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     347 223
Other comprehensive income (loss)     20 42
Other items     11 (13)
Ending balance 378 252 378 252
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Revaluation surplus        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     397 332
Other comprehensive income (loss)     0 0
Other items     0 (9)
Ending balance 397 323 397 323
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Foreign currency translation        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     (390) (544)
Other comprehensive income (loss)     (1) 148
Other items     11 (8)
Ending balance (380) (404) (380) (404)
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Net investment hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     4 36
Other comprehensive income (loss)     (7) (32)
Other items     0 0
Ending balance (3) 4 (3) 4
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Cash flow hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     15 15
Other comprehensive income (loss)     4 (4)
Other items     0 0
Ending balance 19 11 19 11
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Marketable securities        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     35 35
Other comprehensive income (loss)     0 0
Other items     0 0
Ending balance 35 35 35 35
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Unrealized actuarial gains        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1 1
Other comprehensive income (loss)     (1) 0
Other items     0 1
Ending balance 0 2 0 2
Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Equity accounted investments        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     285 348
Other comprehensive income (loss)     25 (70)
Other items     0 3
Ending balance 310 281 310 281
Non-controlling interest - exchange LP units, equity | Accumulated other comprehensive income        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     18 10
Other comprehensive income (loss)     1 2
Other items     (3) 0
Ending balance 16 12 16 12
Non-controlling interest - exchange LP units, equity | Revaluation surplus        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     18 15
Other comprehensive income (loss)     0 0
Other items     0 (1)
Ending balance 18 14 18 14
Non-controlling interest - exchange LP units, equity | Foreign currency translation        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     (13) (22)
Other comprehensive income (loss)     0 5
Other items     (3) 1
Ending balance (16) (16) (16) (16)
Non-controlling interest - exchange LP units, equity | Net investment hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     0 1
Other comprehensive income (loss)     0 (1)
Other items     0 0
Ending balance 0 0 0 0
Non-controlling interest - exchange LP units, equity | Cash flow hedges        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     0 0
Other comprehensive income (loss)     0 0
Other items     0 1
Ending balance 0 1 0 1
Non-controlling interest - exchange LP units, equity | Marketable securities        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     1 1
Other comprehensive income (loss)     0 0
Other items     0 0
Ending balance 1 1 1 1
Non-controlling interest - exchange LP units, equity | Unrealized actuarial gains        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     0 0
Other comprehensive income (loss)     0 0
Other items     0 0
Ending balance 0 0 0 0
Non-controlling interest - exchange LP units, equity | Equity accounted investments        
Disclosure of analysis of other comprehensive income by item [line items]        
Beginning balance     12 15
Other comprehensive income (loss)     1 (2)
Other items     0 (1)
Ending balance $ 13 $ 12 $ 13 $ 12
[1] Refer to Note 16, Partnership Capital.
[2]
5.Includes non-controlling interest attributable to Exchange LP units and BIPC exchangeable LP units.
[3] Refer to Note 16, Partnership Capital.
[4] Refer to Note 16, Partnership Capital.
[5] Refer to Note 16, Partnership Capital.