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v3.20.4

Segment Information - Reconciliation of Reportable Segment Operating Margin to Income (Loss) Before Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2018 | Jun. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of reportable segment operating margin to income (loss) before income taxes: |  |  |  |  |  |  |
Operating margin |  |  |  |  | $ 2,375.4 | $ 1,759.7 | $ 1,523.8
Depreciation and amortization expense |  |  |  |  | (865.1) | (971.6) | (815.9)
General and administrative expense |  |  |  |  | (254.6) | (280.7) | (256.9)
Impairment of long-lived assets |  | $ (2,442.8) |  |  | (2,442.8) | (225.3) |
Impairment of goodwill |  |  | $ (210.0) |  |  |  | (210.0)
Interest expense, net |  |  |  |  | (391.3) | (337.8) | (185.8)
Equity earnings (loss) |  |  |  |  | 72.6 | 39.0 | 7.3
Gain (loss) on sale or disposition of business and assets |  |  |  |  | (58.4) | (71.1) | 0.1
Write-down of assets | [1] |  |  |  | (55.6) | (17.9) |
Gain (loss) from financing activities |  |  |  | $ 61.1 | 45.6 | (1.4) | (2.0)
Gain (loss) from sale of equity-method investment |  |  |  |  |  | 69.3 |
Change in contingent considerations |  |  |  |  | 0.3 | (8.7) | 8.8
Other, net |  |  |  |  | 0.8 | (0.2) | (3.5)
Income (loss) before income taxes |  |  |  |  | (1,573.1) | (46.7) | 65.9
Gathering and Processing [Member] |  |  |  |  |  |  |
Reconciliation of reportable segment operating margin to income (loss) before income taxes: |  |  |  |  |  |  |
Operating margin |  |  |  |  | 1,017.7 | 1,006.4 | 939.2
Logistics and Transportation [Member] |  |  |  |  |  |  |
Reconciliation of reportable segment operating margin to income (loss) before income taxes: |  |  |  |  |  |  |
Operating margin |  |  |  |  | 1,128.0 | 867.2 | 592.5
Other [Member] |  |  |  |  |  |  |
Reconciliation of reportable segment operating margin to income (loss) before income taxes: |  |  |  |  |  |  |
Operating margin |  |  |  |  | $ 229.7 | $ (113.9) | $ (7.9)
[1] | Related to the write-down of certain assets to their recoverable amounts.

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