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Intangible Assets and Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Identifiable intangible assets [Abstract] |  |  |
Gross Value | $ 5,891 |  | $ 4,900
Accumulated Amortization | (1,790) |  | (1,749)
Carrying Value | 4,101 |  | 3,151
Amortization expense | 41 | $ 36 |
Forecasted amortization expense [Abstract] |  |  |
Remainder of 2022 | 148 |  |
2023 | 204 |  |
2024 | 212 |  |
2025 | 211 |  |
2026 | 206 |  |
NGL Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1,198 |  | 614
Accumulated Amortization | (305) |  | (297)
Carrying Value | 893 |  | 317
Amortization expense | 8 | 6 |
NGL Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 449 |  | 449
Accumulated Amortization | (238) |  | (236)
Carrying Value | 211 |  | 213
NGL Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 749 |  | 165
Accumulated Amortization | (67) |  | (61)
Carrying Value | 682 |  | 104
Crude Oil Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 2,478 |  | 2,478
Accumulated Amortization | (638) |  | (618)
Carrying Value | 1,840 |  | 1,860
Amortization expense | 20 | 18 |
Crude Oil Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 2,195 |  | 2,195
Accumulated Amortization | (373) |  | (355)
Carrying Value | 1,822 |  | 1,840
Crude Oil Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 283 |  | 283
Accumulated Amortization | (265) |  | (263)
Carrying Value | 18 |  | 20
Natural Gas Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1,989 |  | 1,582
Accumulated Amortization | (744) |  | (733)
Carrying Value | 1,245 |  | 849
Amortization expense | 11 | 10 |
Natural Gas Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1,350 |  | 1,350
Accumulated Amortization | (559) |  | (550)
Carrying Value | 791 |  | 800
Natural Gas Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 639 |  | 232
Accumulated Amortization | (185) |  | (183)
Carrying Value | 454 |  | 49
Petrochemical & Refined Products Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 226 |  | 226
Accumulated Amortization | (103) |  | (101)
Carrying Value | 123 |  | 125
Amortization expense | 2 | $ 2 |
Petrochemical & Refined Products Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 181 |  | 181
Accumulated Amortization | (77) |  | (75)
Carrying Value | 104 |  | 106
Petrochemical & Refined Products Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 45 |  | 45
Accumulated Amortization | (26) |  | (26)
Carrying Value | $ 19 |  | $ 19

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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