Segment and Geographic Information - Net Sales Mix By Primary Product Categories (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Net sales	$ 4,263.9	$ 4,339.0	$ 8,203.2	$ 8,093.1
Cigarettes
Revenue from External Customer [Line Items]
Net sales	2,892.6	2,834.0	5,475.3	5,301.5
Food
Revenue from External Customer [Line Items]
Net sales	363.0	456.2	762.5	837.8
Fresh
Revenue from External Customer [Line Items]
Net sales	121.9	129.6	242.4	240.3
Candy
Revenue from External Customer [Line Items]
Net sales	243.8	275.8	500.2	513.1
OTP
Revenue from External Customer [Line Items]
Net sales	390.9	368.5	750.9	698.5
Health, beauty & general
Revenue from External Customer [Line Items]
Net sales	202.3	216.9	382.3	404.3
Beverages
Revenue from External Customer [Line Items]
Net sales	49.4	56.9	89.1	96.3
Equipment/other
Revenue from External Customer [Line Items]
Net sales	0.0	1.1	0.5	1.3
Total food/non-food products
Revenue from External Customer [Line Items]
Net sales	$ 1,371.3	$ 1,505.0	$ 2,727.9	$ 2,791.6