Comprehensive Income (Loss) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 24, 2011	Sep. 25, 2010	Sep. 24, 2011	Sep. 25, 2010
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss) including noncontrolling interests	$ 197.0	$ 257.0	$ 503.5	$ 600.7
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax	(122.6)	89.8	4.4	56.4
Amortization of net prior service cost and net actuarial losses, net of tax	5.6	2.0	6.4	4.6
Unrealized (loss) gain on derivative instruments, net of tax	29.1	(5.8)	23.0	(4.1)
Reclassification adjustment on derivative instruments, net of tax	(15.8)	1.1	(8.6)	3.9
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss), net of tax	(15.7)	(3.6)	(6.8)	(13.9)
Total other comprehensive income (loss), net of tax	(119.4)	83.5	18.4	46.9
Comprehensive income (loss)	77.6	340.5	521.9	647.6
Less: Comprehensive (income) loss attributable to the noncontrolling interests	0.4	(0.9)	(0.4)	(2.8)
Comprehensive income (loss) attributable to MCBC	$ 78.0	$ 339.6	$ 521.5	$ 644.8