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PARTNERSHIP CAPITAL - Additional Information (Details) |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 28, 2023 USD ($) shares | Jun. 10, 2022 | Nov. 30, 2024 shares | Sep. 30, 2023 USD ($) shares | Jun. 30, 2024 $ / shares | Dec. 31, 2024 USD ($) transaction day $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Jan. 30, 2025 $ / shares | Dec. 31, 2021 shares | Apr. 21, 2021 | Mar. 31, 2020 shares
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Partnership capital, stock split, conversion ratio |  | 1.5 |  |  |  |  |  |  |  |  |  |
Volume weighted average of trading price, number of trading days | day |  |  |  |  |  | 5 |  |  |  |  |  |
Basic earnings (loss) per share (in dollars per unit) | $ / shares |  |  |  |  |  | $ 0.04 | $ 0.14 | $ 0.14 |  |  |  |
Diluted earnings (loss) per share (in dollars per unit) | $ / shares |  |  |  |  |  | $ 0.04 | $ 0.14 | $ 0.14 |  |  |  |
Exchangeable shares issued as a result of special distribution | 21,000,000 |  |  |  |  |  |  |  |  |  |  | 69,500,000
Exchange ratio |  |  |  |  |  |  |  |  |  |  | 1 |
Issuance of BIPC exchangeable shares | $ | $ 751,000,000 |  |  |  |  |  |  |  |  |  |  |
Potential ordinary share transactions |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly distribution (usd per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.430 |  |  |
Quarterly distribution rate (as a percent) |  |  |  |  |  |  |  |  | 6.00% |  |  |
Brookfield Infrastructure Partners |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Classes of partnership units | transaction |  |  |  |  |  | 3 |  |  |  |  |  |
Holding LP |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Classes of partnership units | transaction |  |  |  |  |  | 4 |  |  |  |  |  |
Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repurchased (in shares) (2023: less than) |  |  |  |  |  |  | 25,000,000 | 0 |  |  |  |
Share repurchase related cost (2023: less than) | $ |  |  |  |  |  | $ 0 | $ 1 | $ 0 |  |  |  |
Preferred Unitholders Capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 43,901,312 | 43,901,312 | 43,901,312 |  | 55,881,062 |  |
Repurchased and cancelled | $ |  |  |  |  |  | $ 0 | $ 0 | $ 220,000,000 |  |  |  |
Preferred Unitholders Capital | Series 5 Preferred Units |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repurchased and cancelled | $ |  |  |  |  |  |  | 243,000,000 |  |  |  |  |
Losses on redemption | $ |  |  |  |  |  |  | 23,000,000 |  |  |  |  |
Special General Partner |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Partnership distributions | $ |  |  |  |  |  | $ 295,000,000 | $ 266,000,000 | $ 240,000,000 |  |  |  |
Special General Partner | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 2,400,631 | 2,400,631 | 2,400,631 |  | 2,400,631 |  |
Weighted average number of shares outstanding (in shares) |  |  |  |  |  | 2,400,000 | 2,400,000 | 2,400,000 |  |  |  |
Limited Partners 1 | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 461,855,350 | 461,343,972 | 458,380,315 |  | 457,901,280 |  |
Repurchased (in shares) (2023: less than) |  |  |  |  |  | 0 | 908,674 | 0 |  |  |  |
Dividend reinvestment plan, unit issued (in shares) |  |  |  |  |  | 300,000 | 400,000 | 300,000 |  |  |  |
Dividend reinvestment plan, proceeds | $ |  |  |  |  |  | $ 11,000,000 |  | $ 13,000,000 |  |  |  |
Weighted average number of shares outstanding (in shares) |  |  |  |  |  | 461,600,000 | 459,400,000 | 458,100,000 |  |  |  |
Units converted to exchangeable shares, value | $ |  |  |  |  |  | $ 0 | $ 100,000,000 | $ 0 |  |  |  |
BIPC Exchange LP | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Units converted to Class A shares of BIPC (in shares) |  |  |  | 3,000,000 |  |  |  |  |  |  |  |
Units converted to exchangeable shares, value | $ |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |
Non-controlling Interest - Redeemable Partnership Units | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  |  | 3,287,267 |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 190,299,956 | 190,299,956 | 193,587,223 |  | 193,587,223 |  |
Weighted average number of shares outstanding (in shares) |  |  |  |  |  | 190,300,000 | 192,700,000 | 193,600,000 |  |  |  |
Units converted to exchangeable shares, value | $ |  |  |  |  |  | $ 0 | $ 100,000,000 | $ 0 |  |  |  |
Non-controlling Interest - Redeemable Partnership Units | Partners' capital | Brookfield Infrastructure Partners |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  |  | 3,287,267 |  |  |  |  |  |  |  |
Non-controlling Interest - Redeemable Partnership Units | Partners' capital | Holding LP |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  |  |  |  | 190,300,000 |  |  |  |  |  |
Non-controlling Interest - Exchange BIPC LP Units, equity | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares converted (shares) |  |  |  |  |  | 200,000 | 200,000 |  |  |  |  |
Non-controlling Interest - Exchange BIPC LP Units, equity | Preferred Unitholders Capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares converted (shares) |  |  |  |  |  | 2,000,000 | 3,000,000 |  |  |  |  |
Non-controlling Interest - Exchange LP Units, equity | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Partnership distributions (in shares) |  |  |  |  |  |  |  |  |  |  |  | 0.11
Number of shares outstanding (in shares) |  |  |  |  |  | 5,738,152 | 6,086,026 | 6,464,819 |  | 7,015,032 |  |
Shares converted (shares) |  |  |  |  |  | 200,000 | 200,000 | 400,000 |  |  |  |
Exchange LP conversion (in shares) |  |  |  |  |  | 100,000 | 200,000 | 200,000 |  |  |  |
Exchange LP unit conversion, value | $ |  |  |  |  |  | $ 2,000,000 | $ 4,000,000 | $ 2,000,000 |  |  |  |
Non-controlling Interest - Class A Preferred Units |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  | 23,088,572 |  |  |  |  |  |  |  |  |
Repurchase, authorized percentage |  |  | 5.00% |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  | 23,088,572 |  |  |  |  |  |  |  |  |
Maximum percentage for public float |  |  | 10.00% |  |  |  |  |  |  |  |  |
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 132,051,909 | 131,872,066 | 110,567,671 |  | 110,157,540 |  |
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital | BIPC Exchangeable Share |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 119,039,120 | 131,872,066 |  |  |  |  |
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital | Class A.2 Exchangeable Shares |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 13,012,789 | 0 |  |  |  |  |
Incentive Distribution, $0.1827 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units) |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares |  |  |  |  | $ 0.1218 |  |  |  |  |  |  |
Distribution rights entitle as percent, threshold |  |  |  |  |  | 15.00% |  |  |  |  |  |
Incentive Distribution, $0.198 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units) |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares |  |  |  |  | $ 0.1320 |  |  |  |  |  |  |
Distribution rights entitle as percent, threshold |  |  |  |  |  | 25.00% |  |  |  |  |  |
Incentive Distribution, $0.203 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units) |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.1827 |  |  |  |  |
Incentive Distribution, $0.22 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units) |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Partnership Units [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.1980 |  |  |  |  |

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