Segment and Geographic Information - Net Sales Mix By Primary Product Categories (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Net sales	$ 3,932.2	$ 3,939.3
Cigarettes
Revenue from External Customer [Line Items]
Net sales	2,587.7	2,582.7
Food
Revenue from External Customer [Line Items]
Net sales	365.7	399.5
Fresh
Revenue from External Customer [Line Items]
Net sales	120.1	120.5
Candy
Revenue from External Customer [Line Items]
Net sales	244.6	256.4
OTP
Revenue from External Customer [Line Items]
Net sales	387.6	360.0
Health, beauty & general
Revenue from External Customer [Line Items]
Net sales	184.7	180.0
Beverages
Revenue from External Customer [Line Items]
Net sales	41.7	39.7
Equipment/other
Revenue from External Customer [Line Items]
Net sales	0.1	0.5
Total food/non-food products
Revenue from External Customer [Line Items]
Net sales	$ 1,344.5	$ 1,356.6