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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Balance Sheet Impact of Investments (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | $ 4,896 | $ 3,711
Non-Current Assets | 69,065 | 57,620
Total assets | 73,961 | 61,331
Current Liabilities | 8,661 | 5,524
Non-Current Liabilities | 38,909 | 34,134
Total liabilities | 47,570 | 39,658
Total |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 2,997 | 2,948
Non-Current Assets | 49,972 | 51,725
Total assets | 52,969 | 54,673
Current Liabilities | 4,578 | 3,972
Non-Current Liabilities | 27,153 | 24,244
Total liabilities | 31,731 | 28,216
Total Net Assets | 21,238 | 26,457
Other Ownership Interests | 16,513 | 20,929
Partnership’s Share | 4,725 | 5,528
Utilities |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 359 | 646
Non-Current Assets | 5,723 | 6,142
Total assets | 6,082 | 6,788
Current Liabilities | 444 | 487
Non-Current Liabilities | 3,738 | 4,238
Total liabilities | 4,182 | 4,725
Total Net Assets | 1,900 | 2,063
Other Ownership Interests | 1,670 | 1,810
Partnership’s Share | 230 | 253
Transport |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 1,356 | 1,266
Non-Current Assets | 24,437 | 25,762
Total assets | 25,793 | 27,028
Current Liabilities | 2,172 | 1,959
Non-Current Liabilities | 13,044 | 9,836
Total liabilities | 15,216 | 11,795
Total Net Assets | 10,577 | 15,233
Other Ownership Interests | 8,260 | 12,474
Partnership’s Share | 2,317 | 2,759
Midstream |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 223 | 173
Non-Current Assets | 6,275 | 6,392
Total assets | 6,498 | 6,565
Current Liabilities | 234 | 249
Non-Current Liabilities | 4,087 | 4,033
Total liabilities | 4,321 | 4,282
Total Net Assets | 2,177 | 2,283
Other Ownership Interests | 1,125 | 911
Partnership’s Share | 1,052 | 1,372
Data |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 1,055 | 841
Non-Current Assets | 13,393 | 13,308
Total assets | 14,448 | 14,149
Current Liabilities | 1,727 | 1,263
Non-Current Liabilities | 6,284 | 6,081
Total liabilities | 8,011 | 7,344
Total Net Assets | 6,437 | 6,805
Other Ownership Interests | 5,350 | 5,672
Partnership’s Share | 1,087 | 1,133
Corporate |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Current Assets | 4 | 22
Non-Current Assets | 144 | 121
Total assets | 148 | 143
Current Liabilities | 1 | 14
Non-Current Liabilities | 0 | 56
Total liabilities | 1 | 70
Total Net Assets | 147 | 73
Other Ownership Interests | 108 | 62
Partnership’s Share | $ 39 | 11
Australian port operation |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 13.00% |
North American natural gas transmission operation |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 38.00% |
Loans and receivables | $ 375 | $ 500
Bottom of range | Utilities |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 11.00% | 11.00%
Bottom of range | Transport |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 6.00% | 6.00%
Bottom of range | Midstream |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 20.00% | 20.00%
Bottom of range | Data |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 12.00% | 12.00%
Bottom of range | Corporate |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 25.00% | 25.00%
Top of range | Utilities |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 20.00% | 20.00%
Top of range | Transport |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 49.00% | 50.00%
Top of range | Midstream |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 38.00% | 50.00%
Top of range | Data |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 21.00% | 21.00%
Top of range | Corporate |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |
Ownership and voting Interest | 50.00% | 50.00%

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