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Business Segments, Segment Reporting Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Information by business segment [Abstract]      
Gross operating margin $ 9,356 $ 8,508 $ 8,188
Revenues from third parties 58,127 40,727 27,163
Revenues from related parties 59 80 37
Intersegment and intrasegment revenues 0 0 0
Total revenues 58,186 40,807 27,200
Equity in income (loss) of unconsolidated affiliates 464 583 426
Property, plant and equipment, net 44,401 42,088 41,913
Investments in unconsolidated affiliates 2,352 2,428 2,429
Intangible assets, net 3,965 3,151 3,309
Goodwill 5,608 5,449 5,449
Segment assets 56,326 53,116 53,100
NGL Pipelines and Services [Member]      
Information by business segment [Abstract]      
Total revenues 24,259 16,302 11,177
Equity in income (loss) of unconsolidated affiliates 149 120 121
Intangible assets, net 865 317  
Goodwill 2,811 2,652 2,652
Crude Oil Pipelines & Services [Member]      
Information by business segment [Abstract]      
Total revenues 18,561 10,902 6,689
Equity in income (loss) of unconsolidated affiliates 308 456 301
Intangible assets, net 1,776 1,860  
Goodwill 1,841 1,841 1,841
Natural Gas Pipelines & Services [Member]      
Information by business segment [Abstract]      
Total revenues 6,260 4,400 2,553
Equity in income (loss) of unconsolidated affiliates 5 6 6
Intangible assets, net 1,206 849  
Goodwill [1] 0 0 0
Petrochemical & Refined Products Services [Member]      
Information by business segment [Abstract]      
Total revenues 9,106 9,203 6,781
Equity in income (loss) of unconsolidated affiliates 2 1 (2)
Intangible assets, net 118 125  
Goodwill [1] 956 956 956
Reportable Business Segments [Member] | NGL Pipelines and Services [Member]      
Information by business segment [Abstract]      
Gross operating margin 5,142 4,316 4,182
Revenues from third parties 24,244 16,293 11,170
Revenues from related parties 15 9 7
Intersegment and intrasegment revenues 65,760 55,796 29,010
Total revenues 90,019 72,098 40,187
Equity in income (loss) of unconsolidated affiliates 149 120 121
Property, plant and equipment, net 17,283 17,202 17,128
Investments in unconsolidated affiliates 640 656 672
Intangible assets, net 865 317 334
Goodwill 2,811 2,652 2,652
Segment assets 21,599 20,827 20,786
Reportable Business Segments [Member] | Crude Oil Pipelines & Services [Member]      
Information by business segment [Abstract]      
Gross operating margin 1,655 1,680 1,997
Revenues from third parties 18,548 10,849 6,669
Revenues from related parties 13 53 20
Intersegment and intrasegment revenues 46,625 29,985 24,531
Total revenues 65,186 40,887 31,220
Equity in income (loss) of unconsolidated affiliates 308 456 301
Property, plant and equipment, net 6,760 6,974 6,983
Investments in unconsolidated affiliates 1,677 1,738 1,724
Intangible assets, net 1,776 1,860 1,937
Goodwill 1,841 1,841 1,841
Segment assets 12,054 12,413 12,485
Reportable Business Segments [Member] | Natural Gas Pipelines & Services [Member]      
Information by business segment [Abstract]      
Gross operating margin 1,042 1,155 927
Revenues from third parties 6,229 4,382 2,543
Revenues from related parties 31 18 10
Intersegment and intrasegment revenues 888 650 460
Total revenues 7,148 5,050 3,013
Equity in income (loss) of unconsolidated affiliates 5 6 6
Property, plant and equipment, net 9,721 8,560 8,466
Investments in unconsolidated affiliates 32 31 31
Intangible assets, net 1,206 849 905
Goodwill 0 0 0
Segment assets 10,959 9,440 9,402
Reportable Business Segments [Member] | Petrochemical & Refined Products Services [Member]      
Information by business segment [Abstract]      
Gross operating margin 1,517 1,357 1,082
Revenues from third parties 9,106 9,203 6,781
Revenues from related parties 0 0 0
Intersegment and intrasegment revenues 18,304 22,110 5,380
Total revenues 27,410 31,313 12,161
Equity in income (loss) of unconsolidated affiliates 2 1 (2)
Property, plant and equipment, net 7,770 7,736 7,528
Investments in unconsolidated affiliates 3 3 2
Intangible assets, net 118 125 133
Goodwill 956 956 956
Segment assets 8,847 8,820 8,619
Eliminations [Member]      
Information by business segment [Abstract]      
Revenues from third parties 0 0 0
Revenues from related parties 0 0 0
Intersegment and intrasegment revenues (131,577) (108,541) (59,381)
Total revenues (131,577) (108,541) (59,381)
Equity in income (loss) of unconsolidated affiliates 0 0 0
Adjustments [Member]      
Information by business segment [Abstract]      
Property, plant and equipment, net 2,867 1,616 1,808
Investments in unconsolidated affiliates 0 0 0
Intangible assets, net 0 0 0
Goodwill 0 0 0
Segment assets $ 2,867 $ 1,616 $ 1,808
[1] Balances are presented net of historical accumulated impairment losses of $296 million for the Natural Gas Pipelines & Service segment and $1 million for the Petrochemical & Refined Products Services segment.  There have been no goodwill impairment charges recognized for the reporting units within the NGL Pipelines & Services and Crude Oil Pipelines & Services segments.