Income Taxes (Differences Between Reported Provision for (Benefit from) Income Taxes and Income Taxes Computed at U.S. Statutory Federal Income Tax Rate) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 26, 2014		Dec. 27, 2013		Dec. 28, 2012
Income Tax Disclosure [Abstract]
Income tax provision (benefit) computed at the U.S. statutory federal rate	$ 55.6		$ (5.9)		$ 55.0
Effect of tax rates on non-U.S. operations	(50.8)		(33.5)		(77.5)
Provision for (reversal of) uncertain tax positions	0.2		3.3		(7.0)
Non-deductible interest	(0.1)		23.6		22.4
Foreign exchange	(5.6)		(6.6)		(5.3)
Non-deductible intercompany charges	0.4		0.2		3.4
Non-deductible differences	2.1		0.9		1.8
Non-taxable income/loss	(2.4)		(1.0)		0.3
Non-deductible expenses	0		0.5		4.3
Non-deductible goodwill impairment	0		16.3		0
Net operating loss re-established due to settlement of audit	(0.2)		2.5		0
Other	(1.2)		0.1		1.0
Other taxes in lieu of income	0		2.3		3.1
Change in deferred rate	(0.8)		1.4		(2.6)
Tax credits	(0.3)		(2.0)		0
Increase/(decrease) in valuation allowance	17.4	[1]	15.1	[1]	13.3	[1]
Provision for income taxes	$ 14.3		$ 17.2		$ 12.2

[1] The (decrease)/increase in valuation allowance includes effects of foreign exchange and adjustments to deferred tax balances which were fully offset by valuation allowance.