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PARTNERSHIP CAPITAL - Capital Categories (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2021 | Jul. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Changes in equity [abstract] |  |  |  |  |  |  |
Balance as |  |  | $ 21,673.0 |  | $ 22,177.0 |  | $ 14,668.0
Unit issuance |  |  | 2,974.0 | [1] | 9.0 | [2] | 809.0
Repurchased and cancelled |  |  |  |  |  |  | (29.0)
Balance as |  |  | 26,391.0 |  | 21,673.0 |  | 22,177.0
Limited Partners |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Balance as |  |  | 4,233.0 |  | 5,048.0 |  | 4,513.0
Unit issuance |  |  | 545.0 | [1] | 9.0 | [2] | 559.0
Repurchased and cancelled |  |  |  |  |  |  | (28.0)
Balance as |  |  | 5,702.0 |  | 4,233.0 |  | 5,048.0
Non-controlling Interest - Redeemable Partnership Units |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Balance as |  |  | 1,687.0 |  | 2,039.0 |  | 1,823.0
Unit issuance |  |  | 400.0 | [1] |  |  | 250.0
Balance as |  |  | 2,408.0 |  | 1,687.0 |  | 2,039.0
Partners' capital | Inter Pipeline |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Unit issuance |  |  | $ 26.0 |  | $ 0.0 |  | $ 0.0
Partners' capital | Special General Partner and Limited Partner |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 297,000,000.0 |  | 295,100,000 |  | 278,900,000
Issued for cash (in shares) |  |  | 9,700,000 |  | 200,000 |  | 13,800,000
Conversion from exchange LP units (in shares) |  |  | 100,000 |  | 300,000 |  | 3,200,000
Conversion from BIPC exchangeable shares (in shares) |  |  | 100,000 |  | 1,400,000 |  | 0
Repurchased and cancelled (in shares) |  |  | 0 |  | 0 |  | (800,000)
Ending balance (in shares) |  |  | 306,900,000 |  | 297,000,000.0 |  | 295,100,000
Balance as |  |  | $ 5,545.0 |  | $ 5,514.0 |  | $ 4,930.0
Unit issuance |  |  | 545.0 |  | 9.0 |  | 559.0
Conversion from Exchange LP Units |  |  | 2.0 |  | 3.0 |  | 53.0
Conversion from BIPC exchangeable shares |  |  | 1.0 |  | 19.0 |  | 0.0
Repurchased and cancelled |  |  | 0.0 |  | 0.0 |  | (28.0)
Balance as |  |  | $ 6,093.0 |  | $ 5,545.0 |  | $ 5,514.0
Partners' capital | Special General Partner |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 1,600,000 |  | 1,600,000 |  | 1,600,000
Issued for cash (in shares) |  |  | 0 |  | 0 |  | 0
Conversion from exchange LP units (in shares) |  |  | 0 |  | 0 |  | 0
Conversion from BIPC exchangeable shares (in shares) |  |  | 0 |  | 0 |  | 0
Repurchased and cancelled (in shares) |  |  | 0 |  | 0 |  | 0
Ending balance (in shares) |  |  | 1,600,000 |  | 1,600,000 |  | 1,600,000
Balance as |  |  | $ 19.0 |  | $ 19.0 |  | $ 19.0
Unit issuance |  |  | 0.0 |  | 0.0 |  | 0.0
Conversion from Exchange LP Units |  |  | 0.0 |  | 0.0 |  | 0.0
Conversion from BIPC exchangeable shares |  |  | 0.0 |  | 0.0 |  | 0.0
Repurchased and cancelled |  |  | 0.0 |  | 0.0 |  | 0.0
Balance as |  |  | $ 19.0 |  | $ 19.0 |  | $ 19.0
Partners' capital | Limited Partners |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 295,400,000 |  | 293,500,000 |  | 277,300,000
Issued for cash (in shares) | 9,500,000 | 13,500,000 | 9,700,000 |  | 200,000 |  | 13,800,000
Conversion from exchange LP units (in shares) |  |  | 100,000 |  | 300,000 |  | 3,200,000
Conversion from BIPC exchangeable shares (in shares) |  |  | 100,000 |  | 1,400,000 |  | 0
Repurchased and cancelled (in shares) |  |  | 0 |  | (100,000) |  | (800,000)
Ending balance (in shares) |  |  | 305,300,000 |  | 295,400,000 |  | 293,500,000
Balance as |  |  | $ 5,526.0 |  | $ 5,495.0 |  | $ 4,911.0
Unit issuance |  |  | 545.0 | [1] | 9.0 | [2] | 559.0
Conversion from Exchange LP Units |  |  | 2.0 |  | 3.0 |  | 53.0
Conversion from BIPC exchangeable shares |  |  | 1.0 |  | 19.0 |  | 0.0
Repurchased and cancelled |  |  | 0.0 |  | (0.1) |  | (28.0)
Balance as |  |  | $ 6,074.0 |  | $ 5,526.0 |  | $ 5,495.0
Partners' capital | Non-controlling Interest - Redeemable Partnership Units |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 121,900,000 |  | 121,900,000 |  | 115,800,000
Issued for cash (in shares) | 7,100,000 | 6,100,000 |  |  | 0 |  | 6,100,000
Ending balance (in shares) |  |  | 129,000,000.0 |  | 121,900,000 |  | 121,900,000
Balance as |  |  | $ 2,328.0 |  | $ 2,328.0 |  | $ 2,078.0
Unit issuance | $ 400.0 |  | 400.0 | [1] | 0.0 |  | 250.0
Balance as |  |  | $ 2,728.0 |  | $ 2,328.0 |  | $ 2,328.0
Partners' capital | Non-controlling interest— BIPC exchangeable shares |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 44,900,000 |  | 0 |  | 0
Issued for cash (in shares) |  |  | 2,100,000 |  | 0 |  | 0
Non-cash issuance (in shares) |  |  | 0 |  | 46,300,000 |  | 0
Class A shares of Brookfield infrastructure corporation conversion (in shares) |  |  | (100,000) |  | (1,400,000) |  | 0
Units converted From BIPC exchangeable, shares |  |  | 400,000 |  | 0 |  | 0
Ending balance (in shares) |  |  | 73,300,000 |  | 44,900,000 |  | 0
Balance as |  |  | $ (19.0) |  | $ 0.0 |  | $ 0.0
Unit issuance |  |  | 1,770.0 |  | 0.0 |  | 0.0
Conversion to units |  |  | (1.0) |  | (19.0) |  | 0.0
Units converted from BIPC exchangeable shares, value |  |  | 5.0 |  | 0.0 |  | 0.0
Balance as |  |  | $ 1,755.0 |  | $ (19.0) |  | $ 0.0
Partners' capital | Non-controlling Interest - Exchange LP Units, equity |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 1,000,000.0 |  | 1,200,000 |  | 4,400,000
Issued for cash (in shares) |  |  | 0 |  | 100,000 |  | 0
Issuance of BIPC exchangeable LP units (in shares) |  |  | $ 4,100,000 |  | $ 0 |  | $ 0
BIPC exchangeable LP converted to BIPC exchangeable (in shares) |  |  | $ (400,000) |  | $ 0 |  | $ 0
Exchange LP conversion (in shares) |  |  | (100,000) |  | (300,000) |  | (3,200,000)
Ending balance (in shares) |  |  | 4,600,000 |  | 1,000,000.0 |  | 1,200,000
Balance as |  |  | $ 156.0 |  | $ 159.0 |  | $ 212.0
Unit issuance |  |  | 259.0 |  | 0.0 |  | 0.0
BIPC exchangeable shares |  |  | (5.0) |  | 0.0 |  | 0.0
Exchange LP Units converted to units |  |  | (2.0) |  | (3.0) |  | (53.0)
Balance as |  |  | $ 408.0 |  | $ 156.0 |  | $ 159.0
Preferred Unitholders Capital |  |  |  |  |  |  |
Changes in equity [abstract] |  |  |  |  |  |  |
Opening balance (in shares) |  |  | 57,900,000 |  | 49,900,000 |  | 49,900,000
Issued for cash (in shares) |  |  | 8,000,000.0 |  | 8,000,000.0 |  | 0
Repurchased and cancelled (in shares) |  |  | (10,000,000.0) |  | 0 |  | 0
Ending balance (in shares) |  |  | 55,900,000 |  | 57,900,000 |  | 49,900,000
Balance as |  |  | $ 1,130.0 |  | $ 935.0 |  | $ 936.0
Unit issuance |  |  | 194.0 |  | 195.0 |  | 0.0
Repurchased and cancelled |  |  |  |  |  |  | (1.0)
Repurchased and cancelled |  |  | (186.0) |  | 0.0 |  | (1.0)
Balance as |  |  | $ 1,138.0 |  | $ 1,130.0 |  | $ 935.0
[1] | Refer to Note 27, Partnership Capital.
[2] | Refer to Note 27, Partnership Capital.

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