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Property, Plant and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross |  | $ 55,285.0 | $ 50,897.2 |
Less accumulated depreciation |  | 13,681.6 | 12,159.6 |
Property, plant and equipment, net |  | 41,603.4 | 38,737.6 | $ 35,620.4
Summary of depreciation expense and capitalized interest [Abstract] |  |  |  |
Depreciation expense | [1] | 1,562.6 | 1,436.2 | 1,296.1
Capitalized interest | [2] | 143.8 | 147.9 | 192.1
Asset Retirement Obligations [Roll Forward] |  |  |  |
ARO liability beginning balance |  | 126.3 | 86.7 | 85.4
Liabilities incurred |  | 5.0 | 24.4 | 4.7
Liabilities settled |  | (2.3) | (2.5) | (2.2)
Revisions in estimated cash flows |  | (4.8) | 11.5 | (6.7)
Accretion expense |  | 7.9 | 6.2 | 5.5
ARO liability ending balance |  | 132.1 | 126.3 | $ 86.7
Capitalized costs, asset retirement costs |  | 69.6 | 72.5 |
Forecasted accretion expense [Abstract] |  |  |  |
2020 |  | 8.2 |  |
2021 |  | 8.6 |  |
2022 |  | 9.1 |  |
2023 |  | 9.6 |  |
2024 |  | 10.3 |  |
Plants, pipelines and facilities [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross | [3] | $ 47,201.2 | 42,371.0 |
Plants, pipelines and facilities [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [3],[4] | 3 years |  |
Plants, pipelines and facilities [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [3],[4] | 45 years |  |
Underground and other storage facilities [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross | [5] | $ 3,965.5 | 3,624.2 |
Underground and other storage facilities [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [5],[6] | 5 years |  |
Underground and other storage facilities [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [5],[6] | 40 years |  |
Transportation equipment [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross | [7] | $ 198.9 | 187.1 |
Transportation equipment [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [7] | 3 years |  |
Transportation equipment [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [7] | 10 years |  |
Marine vessels [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross | [8] | $ 905.9 | 828.6 |
Marine vessels [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [8] | 15 years |  |
Marine vessels [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life | [8] | 30 years |  |
Land [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross |  | $ 372.3 | 359.5 |
Construction in progress [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Property, plant and equipment, gross |  | $ 2,641.2 | $ 3,526.8 |
Processing plants [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 20 years |  |
Processing plants [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 35 years |  |
Pipelines and related equipment [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 5 years |  |
Pipelines and related equipment [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 45 years |  |
Terminal facilities [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 10 years |  |
Terminal facilities [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 35 years |  |
Buildings [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 20 years |  |
Buildings [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 40 years |  |
Office furniture and equipment [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 3 years |  |
Office furniture and equipment [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 20 years |  |
Laboratory and shop equipment [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 5 years |  |
Laboratory and shop equipment [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 35 years |  |
Underground storage facilities [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 5 years |  |
Underground storage facilities [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 35 years |  |
Storage tanks [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 10 years |  |
Storage tanks [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 40 years |  |
Water wells [Member] | Minimum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 5 years |  |
Water wells [Member] | Maximum [Member] |  |  |  |
Property, plant and equipment and accumulated depreciation [Abstract] |  |  |  |
Estimated useful life |  | 35 years |  |
[1] | Depreciation expense is a component of “Costs and expenses” as presented on our Statements of Consolidated Operations.
[2] | Capitalized interest is a component of “Interest expense” as presented on our Statements of Consolidated Operations.
[3] | Plants, pipelines and facilities include processing plants; NGL, natural gas, crude oil and petrochemical and refined products pipelines; terminal loading and unloading facilities; buildings; office furniture and equipment; laboratory and shop equipment and related assets. We placed a number of major growth projects into service during 2019 including the Shin Oak NGL pipeline, Midland-to-ECHO 2 pipeline, an isobutane dehydrogenation facility, the Mentone and Bulldog natural gas processing plants, and LPG-related expansion projects at our Enterprise Hydrocarbons Terminal.
[4] | In general, the estimated useful lives of major assets within this category are: processing plants, 20-35 years; pipelines and related equipment, 5-45 years; terminal facilities, 10-35 years; buildings, 20-40 years; office furniture and equipment, 3-20 years; and laboratory and shop equipment, 5-35 years.
[5] | Underground and other storage facilities include underground product storage caverns; above ground storage tanks; water wells and related assets.
[6] | In general, the estimated useful lives of assets within this category are: underground storage facilities, 5-35 years; storage tanks, 10-40 years; and water wells, 5-35 years.
[7] | Transportation equipment includes tractor-trailer tank trucks and other vehicles and similar assets used in our operations.Marine vessels include tow boats, barges and related equipment used in our marine transportation business.
[8] | Marine vessels include tow boats, barges and related equipment used in our marine transportation business.

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