Investments Variable Interest Entity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 25, 2011		Jun. 30, 2012		Jun. 25, 2011		Dec. 31, 2011
Variable Interest Entity
Assets	$ 16,236.7				$ 16,236.7				$ 12,423.8
Revenues	999.4		933.6		1,690.8		1,624.0
Income tax expense	123.8		268.5		220.4		367.0
Grolsch
Variable Interest Entity
Assets	16.3				16.3				20.4
Revenues	6.4	[1]	7.7	[1]	11.6	[1]	12.9	[1]
Income tax expense	0.9	[1]	1.9	[1]	1.7	[1]	2.6	[1]
Cobra
Variable Interest Entity
Assets	29.8				29.8				31.6
Revenues	10.8		10.3		19.0		18.6
Income tax expense	$ 1.7		$ 2.1		$ 2.1		$ 3.1

[1] Substantially all such sales for Grolsch are made to us and as such, are eliminated in consolidation.