Inventory (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

Carrying value of inventories consisted of the following (in millions):

	June 30, 2018		December 31, 2017
Refinery raw materials and supplies	$	385.1	$	308.0
Refinery work in process	92.8		79.2
Refinery finished goods	355.7		366.4
Retail fuel	8.3		8.3
Retail merchandise	26.9		25.6
Logistics refined products	12.7		20.9
Total inventories	$	881.5	$	808.4