Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 20, 2015	Jun. 14, 2014	Jun. 20, 2015	Jun. 14, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		$ (59.2)	$ (12.1)	$ (49.5)	$ (9.2)
Other comprehensive income (loss) before reclassifications	[1]	3.6	4.6	(7.4)	0.2
Amounts reclassified from accumulated other comprehensive income (loss)		0.0	2.0	2.3	4.3
Income tax expense (benefit)		(0.3)	(0.8)	(1.3)	(1.6)
Net reclassifications		(0.3)	1.2	1.0	2.7
Other comprehensive income (loss)	[1]	3.3	5.8	(6.4)	2.9
Accumulated other comprehensive income (loss), Ending Balance		(55.9)	(6.3)	(55.9)	(6.3)
Foreign exchange contracts [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		13.9	0.9	8.6	(0.8)
Other comprehensive income (loss) before reclassifications	[1]	(4.6)	(0.5)	2.5	0.8
Amounts reclassified from accumulated other comprehensive income (loss)	[2]	(4.9)	0.2	(7.4)	0.8
Income tax expense (benefit)		1.5	(0.1)	2.2	(0.3)
Net reclassifications		(3.4)	0.1	(5.2)	0.5
Other comprehensive income (loss)	[1]	(8.0)	(0.4)	(2.7)	1.3
Accumulated other comprehensive income (loss), Ending Balance		5.9	0.5	5.9	0.5
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(0.3)	0.7	0.4	0.6
Other comprehensive income (loss) before reclassifications	[1]		(0.5)	(0.7)	(0.4)
Other comprehensive income (loss)	[1]	0.0	(0.5)	(0.7)	(0.4)
Accumulated other comprehensive income (loss), Ending Balance		(0.3)	0.2	(0.3)	0.2
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(34.3)	(5.3)	(16.9)	0.5
Other comprehensive income (loss) before reclassifications	[1]	8.2	5.6	(9.2)	(0.2)
Other comprehensive income (loss)	[1]	8.2	5.6	(9.2)	(0.2)
Accumulated other comprehensive income (loss), Ending Balance		(26.1)	0.3	(26.1)	0.3
Pension adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(38.5)	(8.4)	(41.6)	(9.5)
Amounts reclassified from accumulated other comprehensive income (loss)	[3]	4.9	1.8	9.7	3.5
Income tax expense (benefit)		(1.8)	(0.7)	(3.5)	(1.3)
Net reclassifications		3.1	1.1	6.2	2.2
Other comprehensive income (loss)	[1]	3.1	1.1	6.2	2.2
Accumulated other comprehensive income (loss), Ending Balance		$ (35.4)	$ (7.3)	$ (35.4)	$ (7.3)

[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 the computation of net pension expense.