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Property, Plant and Equipment and Intangible Assets - Property, Plant and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 20,185.0 | $ 19,876.8 |
Accumulated depreciation, amortization and impairment | (8,011.4) | (5,328.3) |
Property, plant and equipment, net | 12,173.6 | 14,548.5 |
Intangible assets | 2,643.5 | 2,643.5 |
Accumulated amortization and impairment | (1,261.1) | (908.5) |
Intangible assets, net | $ 1,382.4 | 1,735.0 | $ 1,983.2
Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 10 years |  |
Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 20 years |  |
Gathering Systems [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 9,216.1 | 8,976.8 |
Gathering Systems [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 5 years |  |
Gathering Systems [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 20 years |  |
Processing and Fractionation Facilities [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 6,276.8 | 5,143.0 |
Processing and Fractionation Facilities [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 5 years |  |
Processing and Fractionation Facilities [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 25 years |  |
Terminaling and Storage Facilities [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 1,555.1 | 1,495.5 |
Terminaling and Storage Facilities [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 5 years |  |
Terminaling and Storage Facilities [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 25 years |  |
Transportation Assets [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 2,567.7 | 2,292.4 |
Transportation Assets [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 10 years |  |
Transportation Assets [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 50 years |  |
Other Property, Plant and Equipment [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 32.4 | 184.1 |
Other Property, Plant and Equipment [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 3 years |  |
Other Property, Plant and Equipment [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Estimated useful lives | 50 years |  |
Land [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 160.8 | 159.7 |
Construction in Progress [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | 324.3 | 1,576.5 |
Finance Lease Right-of-Use Assets [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment | $ 51.8 | $ 48.8 |

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