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PARTNERSHIP CAPITAL - Capital Categories (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 21, 2022 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ 29,775 |  | $ 32,623 |  | $ 29,853 |  | $ 34,016 |  | $ 34,016
Unit issuance |  | 3 | [1] | 3 | [2] | 5 | [3] | 6 | [4] |
Repurchased and cancelled |  | (29) | [1] |  |  | (29) | [3] |  |  |
Ending balance |  | 29,649 |  | 30,109 |  | 29,649 |  | 30,109 |  | 29,853
Redeemable Partnership Units held by Brookfield |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  | 1,876 |  | 2,122 |  | 1,926 |  | 2,190 |  | 2,190
Ending balance |  | $ 1,830 |  | $ 2,011 |  | $ 1,830 |  | $ 2,011 |  | $ 1,926
Limited partners’ capital |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Repurchased and cancelled (in shares) |  |  |  |  |  | (1,000,000) |  | 0 |  |
Limited partners’ capital | Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Exchangeable share |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Opening balance (in shares) |  |  |  |  |  | 119,039,120 |  |  |  |
Ending balance (in shares) |  | 119,051,449 |  |  |  | 119,051,449 |  |  |  | 119,039,120
Limited partners’ capital | Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares | Class exchangeable shares |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Opening balance (in shares) |  |  |  |  |  | 13,012,789 |  |  |  |
Ending balance (in shares) |  | 13,012,789 |  |  |  | 13,012,789 |  |  |  | 13,012,789
Limited partners’ capital | Redeemable Partnership Units held by Brookfield |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 2,628 |  | $ 2,628 |  | $ 2,628
Opening balance (in shares) |  |  |  |  |  | 190,299,956 |  | 190,299,956 |  | 190,299,956
Ending balance |  | $ 2,628 |  |  |  | $ 2,628 |  |  |  | $ 2,628
Ending balance (in shares) |  | 190,299,956 |  |  |  | 190,299,956 |  |  |  | 190,299,956
Limited partners’ capital | Non-controlling interest – BIPC exchangeable shares and class A.2 exchangeable shares |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 2,514 |  | $ 2,512 |  | $ 2,512
Opening balance (in shares) |  |  |  |  |  | 132,051,909 |  | 131,872,066 |  | 131,872,066
Conversions (less than in 2025) |  |  |  |  |  | $ 0 |  | $ 1 |  | $ 2
Conversions (in shares) |  |  |  |  |  | 12,329 |  | 100,000 |  | 179,843
Ending balance |  | $ 2,514 |  |  |  | $ 2,514 |  |  |  | $ 2,514
Ending balance (in shares) |  | 132,064,238 |  |  |  | 132,064,238 |  |  |  | 132,051,909
Limited partners’ capital | General partner |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 19 |  | $ 19 |  | $ 19
Opening balance (in shares) |  |  |  |  |  | 2,400,631 |  | 2,400,631 |  | 2,400,631
Ending balance |  | $ 19 |  |  |  | $ 19 |  |  |  | $ 19
Ending balance (in shares) |  | 2,400,631 |  |  |  | 2,400,631 |  |  |  | 2,400,631
Limited partners’ capital | Limited Partners |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 6,210 |  | $ 6,196 |  | $ 6,196
Opening balance (in shares) |  |  |  |  |  | 461,855,350 |  | 461,343,972 |  | 461,343,972
Unit issuance |  |  |  |  |  | $ 5 |  |  |  | $ 11
Issued for cash (in shares) |  |  |  |  |  | 164,617 |  |  |  | 343,347
Conversions |  |  |  |  |  | $ 2 |  |  |  | $ 3
Conversions (in shares) |  |  |  |  |  | 105,452 |  |  |  | 168,031
Repurchased and cancelled |  |  |  |  |  | $ (14) |  |  |  | $ 0
Repurchased and cancelled (in shares) |  |  |  |  |  | (1,043,911) |  |  |  | 0
Ending balance |  | $ 6,203 |  |  |  | $ 6,203 |  |  |  | $ 6,210
Ending balance (in shares) |  | 461,081,508 |  |  |  | 461,081,508 |  |  |  | 461,855,350
Limited partners’ capital | Non-controlling interest - exchange LP units, equity |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 388 |  | $ 393 |  | $ 393
Opening balance (in shares) |  |  |  |  |  | 5,738,152 |  | 6,086,026 |  | 6,086,026
Conversions (less than in 2025) |  |  |  |  |  | $ (2) |  | $ 2 |  | $ (5)
Conversions (in shares) |  |  |  |  |  | (117,781) |  |  |  | (347,874)
Ending balance |  | $ 386 |  |  |  | $ 386 |  |  |  | $ 388
Ending balance (in shares) |  | 5,620,371 |  |  |  | 5,620,371 |  |  |  | 5,738,152
Perpetual subordinated notes |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Opening balance (in shares) |  |  |  |  |  | 293,000,000 |  | 293,000,000 |  | 293,000,000
Issued for cash (in shares) | 12,000,000 |  |  |  |  |  |  |  |  |
Ending balance (in shares) |  | 293,000,000 |  |  |  | 293,000,000 |  |  |  | 293,000,000
Preferred unitholders capital |  |  |  |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  |  | $ 918 |  | $ 918 |  | $ 918
Opening balance (in shares) |  |  |  |  |  | 43,901,312 |  | 43,901,312 |  | 43,901,312
Repurchased and cancelled |  |  |  |  |  | $ (96) |  |  |  | $ 0
Repurchased and cancelled (in shares) |  |  |  |  |  | (4,989,265) |  |  |  | 0
Ending balance |  | $ 822 |  |  |  | $ 822 |  |  |  | $ 918
Ending balance (in shares) |  | 38,912,047 |  |  |  | 38,912,047 |  |  |  | 43,901,312
[1] | Refer to Note 16, Partnership Capital.
[2] | Refer to Note 16, Partnership Capital.
[3] | Refer to Note 16, Partnership Capital.
[4] | Refer to Note 16, Partnership Capital.

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