CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 26, 2011
Net income (loss) including noncontrolling interests	$ 79.4	$ 82.7
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments, net of tax	107.8	161.7
Amortization of net prior service cost and net actuarial losses, net of tax	9.9	0.9
Unrealized (loss) gain on derivative instruments, net of tax	(17.8)	(7.5)
Reclassification adjustment on derivative instruments, net of tax	1.8	2.5
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss), net of tax	9.4	12.9
Total other comprehensive income (loss), net of tax	111.1	170.5
Comprehensive income (loss)	190.5	253.2
Less: Comprehensive (income) loss attributable to the noncontrolling interests	0.1	0.2
Comprehensive income (loss) attributable to MCBC	$ 190.6	$ 253.4