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Gains and Losses on Divestitures, Impairments and Other Write-downs (Tables) | 12 Months Ended
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Dec. 31, 2023
Impairments [Abstract] |
Impairment of Goodwill, Long-lived assets and equity investments [Table Text Block] | We recognized the following non-cash pre-tax losses (gains) on divestitures, impairments or other write-downs on assets and equity investments during the years ended December 31, 2023, 2022, and 2021:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (In millions)
Natural Gas Pipelines |  |  |  |  |
Impairments of long-lived assets(a) | $ | — |  |  | $ | — |  |  | $ | 1,600 |
Gain on sale of interest in NGPL Holdings(b) | — |  |  | — |  |  | (206) |
Loss on write-down of related party note receivable(c) | — |  |  | — |  |  | 117 |
Gains on divestitures of long-lived assets | (10) |  |  | (10) |  |  | (1) |
Products Pipelines |  |  |  |  |
Impairment of equity investment(d) | 67 |  |  | — |  |  | — |
Gain on divestiture of long-lived asset | — |  |  | (12) |  |  | — |
Terminals |  |  |  |  |
Impairments of long-lived assets | — |  |  | — |  |  | 34 |
(Gains) losses on divestitures of long-lived assets | (1) |  |  | (9) |  |  | 2 |
CO 2 |  |  |  |  |
Gains on divestitures of long-lived assets | (1) |  |  | (1) |  |  | (8) |
Other gains on divestitures of long-lived assets | (3) |  |  | — |  |  | (3) |
Pre-tax losses (gains) on divestitures, impairments and other write-downs, net | $ | 52 |  |  | $ | (32) |  |  | $ | 1,535 |
(a)2021 amount represents non-cash impairments associated with our South Texas gathering and processing assets. (b)See Note 3. (c)See “—Investment in Ruby” below for a further discussion. (d)See “—Investments” below for a further discussion.

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