Segment and Geographic Information - Net Sales Mix By Primary Product Categories (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue from External Customer [Line Items]
Net sales	$ 3,993.9	$ 2,991.6	$ 10,692.6	$ 8,254.3
Cigarettes
Revenue from External Customer [Line Items]
Net sales	2,855.3	2,049.6	7,601.0	5,594.0
Food
Revenue from External Customer [Line Items]
Net sales	387.5	336.5	1,047.2	940.7
Fresh
Revenue from External Customer [Line Items]
Net sales	106.4	91.6	289.2	250.0
Candy
Revenue from External Customer [Line Items]
Net sales	165.6	145.1	465.9	422.5
Other tobacco products
Revenue from External Customer [Line Items]
Net sales	306.7	229.9	829.2	651.0
Health, beauty & general
Revenue from External Customer [Line Items]
Net sales	118.0	91.7	320.5	271.8
Beverages
Revenue from External Customer [Line Items]
Net sales	53.3	46.6	137.1	122.9
Equipment/other
Revenue from External Customer [Line Items]
Net sales	1.1	0.6	2.5	1.4
Total food/non-food products
Revenue from External Customer [Line Items]
Net sales	$ 1,138.6	$ 942.0	$ 3,091.6	$ 2,660.3