CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Net income (loss) including noncontrolling interests	$ 123.6	$ 201.4	$ 440.6	$ 379.5
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	270.7	258.3	(124.1)	301.9
Unrealized (loss) gain on derivative instruments	(14.1)	(21.3)	18.6	(31.5)
Reclassification of derivative (gain) loss instruments	(0.9)	4.1	(1.6)	7.6
Amortization of net prior service(benefit) cost and net actuarial (gain) loss to income	10.6	6.5	34.5	22.0
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	15.6	15.7	6.1	25.0
Total other comprehensive income (loss), net of tax	281.9	263.3	(66.5)	325.0
Comprehensive income (loss)	405.5	464.7	374.1	704.5
Less: Comprehensive (income) loss attributable to the noncontrolling interest	(1.8)	(3.0)	(4.8)	3.5
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$ 403.7	$ 461.7	$ 369.3	$ 708.0