Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 18, 2016		Jun. 20, 2015	Jun. 18, 2016		Jun. 20, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI		$ (57.5)		$ (59.2)	$ (56.1)		$ (49.5)
Other comprehensive income (loss) before reclassifications	[1]	1.4		3.6	0.3		(7.4)
Amounts reclassified from AOCI		(1.5)		0.0	(1.9)		2.3
Income tax expense (benefit)		0.3		(0.3)	0.4		(1.3)
Net reclassifications		(1.2)		(0.3)	(1.5)		1.0
Other comprehensive income (loss)	[1]	0.2		3.3	(1.2)		(6.4)
Ending balance AOCI		(57.3)		(55.9)	(57.3)		(55.9)
Foreign exchange contracts [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI		3.2		13.9	6.4		8.6
Other comprehensive income (loss) before reclassifications	[1]	(1.4)		(4.6)	(3.3)		2.5
Amounts reclassified from AOCI	[2]	(2.9)		(4.9)	(4.7)		(7.4)
Income tax expense (benefit)		0.9		1.5	1.4		2.2
Net reclassifications		(2.0)		(3.4)	(3.3)		(5.2)
Other comprehensive income (loss)	[1]	(3.4)		(8.0)	(6.6)		(2.7)
Ending balance AOCI		(0.2)		5.9	(0.2)		5.9
Interest rate swaps [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI		(6.4)		(0.3)	(2.4)		0.4
Other comprehensive income (loss) before reclassifications	[1]	(2.5)		0.0	(6.7)		(0.7)
Amounts reclassified from AOCI		0.2	[3]	0.0	0.5	[3]	0.0
Income tax expense (benefit)		(0.1)		0.0	(0.2)		0.0
Net reclassifications		0.1		0.0	0.3		0.0
Other comprehensive income (loss)	[1]	(2.4)		0.0	(6.4)		(0.7)
Ending balance AOCI		(8.8)		(0.3)	(8.8)		(0.3)
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI		(42.3)		(34.3)	(47.3)		(16.9)
Other comprehensive income (loss) before reclassifications	[1]	5.3		8.2	10.3		(9.2)
Amounts reclassified from AOCI		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)	[1]	5.3		8.2	10.3		(9.2)
Ending balance AOCI		(37.0)		(26.1)	(37.0)		(26.1)
Pension adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI		(12.0)		(38.5)	(12.8)		(41.6)
Other comprehensive income (loss) before reclassifications	[1]	0.0		0.0	0.0		0.0
Amounts reclassified from AOCI	[4]	1.2		4.9	2.3		9.7
Income tax expense (benefit)		(0.5)		(1.8)	(0.8)		(3.5)
Net reclassifications		0.7		3.1	1.5		6.2
Other comprehensive income (loss)	[1]	0.7		3.1	1.5		6.2
Ending balance AOCI		$ (11.3)		$ (35.4)	$ (11.3)		$ (35.4)

[1] Other comprehensive income (loss) 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.