Segment and Geographic Information - Net Sales Mix By Primary Product Categories (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue from External Customer [Line Items]
Net sales	$ 4,495.9	$ 4,263.9	$ 8,428.1	$ 8,203.2
Cigarettes
Revenue from External Customer [Line Items]
Net sales	2,899.9	2,892.6	5,487.6	5,475.3
Food
Revenue from External Customer [Line Items]
Net sales	456.9	363.0	822.6	762.5
Fresh
Revenue from External Customer [Line Items]
Net sales	148.6	121.9	268.7	242.4
Candy
Revenue from External Customer [Line Items]
Net sales	294.0	243.8	538.6	500.2
OTP
Revenue from External Customer [Line Items]
Net sales	422.3	390.9	809.9	750.9
Health, beauty & general
Revenue from External Customer [Line Items]
Net sales	210.1	202.3	394.8	382.3
Beverages
Revenue from External Customer [Line Items]
Net sales	63.2	49.4	104.9	89.1
Equipment/other
Revenue from External Customer [Line Items]
Net sales	0.9	0.0	1.0	0.5
Total food/non-food products
Revenue from External Customer [Line Items]
Net sales	$ 1,596.0	$ 1,371.3	$ 2,940.5	$ 2,727.9