Segment and Geographic Information - Net Sales Mix By Primary Product Categories (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 2,452.3	$ 2,300.9
Total food/non-food products
Segment Reporting Information [Line Items]
Net sales	807.0	752.6
Cigarettes
Segment Reporting Information [Line Items]
Net sales	1,645.3	1,548.3
Food
Segment Reporting Information [Line Items]
Net sales	353.7	323.3
Candy
Segment Reporting Information [Line Items]
Net sales	131.8	128.1
Other tobacco products
Segment Reporting Information [Line Items]
Net sales	199.6	187.9
Health, beauty & general
Segment Reporting Information [Line Items]
Net sales	89.5	83.0
Beverages
Segment Reporting Information [Line Items]
Net sales	32.1	30.3
Equipment/other
Segment Reporting Information [Line Items]
Net sales	$ 0.3	$ 0