Other Operating (Income) Expense - Summary of (Gain) Loss on Sale or Disposition of Business and Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets	$ 58.4	$ 71.1	$ (0.1)
Channelview [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets	58.3
Inland Marine Barge Business [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets			(48.1)
Delaware Crude System [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets		59.5
Versado Gathering System [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets			(44.4)
Storage and Terminaling Facilities [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets			59.1
Benzene Treating Unit [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets			20.5
Other [Member]
Other Operating Income Expense [Line Items]
Total (gain) loss on sale or disposition of business and assets	$ 0.1	$ 11.6	$ 12.8