Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended				8 Months Ended
		Sep. 12, 2015		Sep. 06, 2014		Sep. 12, 2015		Sep. 06, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		$ (55.9)		$ (6.3)		$ (49.5)		$ (9.2)
Other comprehensive income (loss) before reclassifications	[1]	(12.0)		(1.1)		(19.4)		(0.9)
Amounts reclassified from accumulated other comprehensive income (loss)		(0.2)		1.5		2.1		5.8
Income tax expense (benefit)		0.0		(0.4)		(1.3)		(2.0)
Net reclassifications		(0.2)		1.1		0.8		3.8
Other comprehensive income (loss)		(12.2)	[1]	0.0	[1]	(18.6)		2.9
Accumulated other comprehensive income (loss), Ending Balance		(68.1)		(6.3)		(68.1)		(6.3)
Foreign exchange contracts [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		5.9		0.5		8.6		(0.8)
Other comprehensive income (loss) before reclassifications	[1]	3.8		2.7		6.3		3.5
Amounts reclassified from accumulated other comprehensive income (loss)	[2]	(6.6)		(0.2)		(14.0)		0.6
Income tax expense (benefit)		2.2		0.1		4.4		(0.2)
Net reclassifications		(4.4)		(0.1)		(9.6)		0.4
Other comprehensive income (loss)		(0.6)	[1]	2.6	[1]	(3.3)		3.9
Accumulated other comprehensive income (loss), Ending Balance		5.3		3.1		5.3		3.1
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(0.3)		0.2		0.4		0.6
Other comprehensive income (loss) before reclassifications	[1]	(4.0)		0.0		(4.7)		(0.4)
Amounts reclassified from accumulated other comprehensive income (loss)		1.6	[3]	0.0		1.6	[3]	0.0
Income tax expense (benefit)		(0.6)		0.0		(0.6)		0.0
Net reclassifications		1.0		0.0		1.0		0.0
Other comprehensive income (loss)		(3.0)	[1]	0.0	[1]	(3.7)		(0.4)
Accumulated other comprehensive income (loss), Ending Balance		(3.3)		0.2		(3.3)		0.2
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(26.1)		0.3		(16.9)		0.5
Other comprehensive income (loss) before reclassifications	[1]	(11.8)		(3.8)		(21.0)		(4.0)
Amounts reclassified from accumulated other comprehensive income (loss)		0.0		0.0		0.0		0.0
Income tax expense (benefit)		0.0		0.0		0.0		0.0
Net reclassifications		0.0		0.0		0.0		0.0
Other comprehensive income (loss)		(11.8)	[1]	(3.8)	[1]	(21.0)		(4.0)
Accumulated other comprehensive income (loss), Ending Balance		(37.9)		(3.5)		(37.9)		(3.5)
Pension adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(35.4)		(7.3)		(41.6)		(9.5)
Other comprehensive income (loss) before reclassifications	[1]	0.0		0.0		0.0		0.0
Amounts reclassified from accumulated other comprehensive income (loss)	[4]	4.8		1.7		14.5		5.2
Income tax expense (benefit)		(1.6)		(0.5)		(5.1)		(1.8)
Net reclassifications		3.2		1.2		9.4		3.4
Other comprehensive income (loss)		3.2	[1]	1.2	[1]	9.4		3.4
Accumulated other comprehensive income (loss), Ending Balance		$ (32.2)		$ (6.1)		$ (32.2)		$ (6.1)

[1] Other comprehensive income is reported net of taxes and noncontrolling interest.

[2] Amounts reclassified are included in cost of goods sold.

[3] Amounts reclassified are included in interest expense.

[4] Amounts reclassified are included in the computation of net pension expense.