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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Income Statement Impact of Investments (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | $ 11,537 | $ 8,885 | $ 6,597
Net income | 2,719 | 904 | 650
OCI | 260 | (62) | 590
Comprehensive income | 2,979 | 842 | 1,240
Total |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 16,437 | 8,897 | 6,595
Net income | 2,235 | 1,049 | 651
OCI | (278) | (1,495) | 237
Comprehensive income | 1,957 | (446) | 888
Net income (loss) attributable to the Partnership | 88 | 131 | 224
Utilities |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 1,336 | 1,715 | 1,046
Net income | 521 | 364 | 354
OCI | 28 | (205) | 26
Comprehensive income | 549 | 159 | 380
Net income (loss) attributable to the Partnership | 84 | 50 | 57
Transport |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 11,808 | 4,161 | 3,351
Net income | 1,574 | 171 | 22
OCI | (435) | (1,419) | 364
Comprehensive income | 1,139 | (1,248) | 386
Net income (loss) attributable to the Partnership | 15 | (101) | 2
Midstream |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 833 | 767 | 734
Net income | 146 | 236 | 351
OCI | (46) | 0 | (54)
Comprehensive income | 100 | 236 | 297
Net income (loss) attributable to the Partnership | 74 | 136 | 184
Data |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 2,460 | 2,245 | 1,447
Net income | 70 | 293 | (38)
OCI | 73 | 374 | 57
Comprehensive income | 143 | 667 | 19
Net income (loss) attributable to the Partnership | 14 | 45 | (9)
Corporate |  |  |
Disclosure Of Associates And Joint Ventures [Line Items] |  |  |
Revenues | 0 | 9 | 17
Net income | (76) | (15) | (38)
OCI | 102 | (245) | (156)
Comprehensive income | 26 | (260) | (194)
Net income (loss) attributable to the Partnership | $ (99) | $ 1 | $ (10)

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