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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Income Statement Impact of Investments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues $ 14,427 $ 11,537 $ 8,885
Net income 1,375 2,719 904
OCI 148 260 (62)
Comprehensive income 1,523 2,979 842
Total      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 22,584 16,437 8,897
Net income 1,849 2,235 1,049
OCI 1,895 (278) (1,495)
Comprehensive income 3,744 1,957 (446)
Net income (loss) attributable to the Partnership 12 88 131
Utilities      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 2,287 1,336 1,715
Net income 249 521 364
OCI 52 28 (205)
Comprehensive income 301 549 159
Net income (loss) attributable to the Partnership 28 84 50
Transport      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 16,994 11,808 4,161
Net income 1,151 1,574 171
OCI 388 (435) (1,419)
Comprehensive income 1,539 1,139 (1,248)
Net income (loss) attributable to the Partnership (85) 15 (101)
Midstream      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 918 833 767
Net income 220 146 236
OCI 67 (46) 0
Comprehensive income 287 100 236
Net income (loss) attributable to the Partnership 97 74 136
Data      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 2,385 2,460 2,245
Net income 315 70 293
OCI 769 73 374
Comprehensive income 1,084 143 667
Net income (loss) attributable to the Partnership 28 14 45
Corporate      
Disclosure Of Associates And Joint Ventures [Line Items]      
Revenues 0 0 9
Net income (86) (76) (15)
OCI 619 102 (245)
Comprehensive income 533 26 (260)
Net income (loss) attributable to the Partnership $ (56) $ (99) $ 1