Accumulated Other Comprehensive (Loss) Income - Changes in OCI (Details) - USD ($) $ in Millions		12 Months Ended
		Jan. 01, 2016	Dec. 26, 2014	Dec. 27, 2013
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	$ 2.6	$ (3.4)
Other comprehensive (loss) income before reclassifications	[1]	12.6	9.4
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(38.2)	(3.4)
Net current period other comprehensive (loss) income	[1]	(25.6)	6.0
Ending Balance	[1]	(23.0)	2.6	$ (3.4)
Net unrealized foreign currency translation loss		14.9	12.8	0.3
Net foreign currency translation loss		14.9	12.8	0.3
Retirement benefit loss		(1.6)	9.7	(12.5)
Changes in Fair Value of Effective Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	25.2	(3.1)
Other comprehensive (loss) income before reclassifications	[1]	26.4	32.9
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(39.7)	(4.6)
Net current period other comprehensive (loss) income	[1]	(13.3)	28.3
Ending Balance	[1]	11.9	25.2	(3.1)
Foreign Currency Translation Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	(0.8)	12.0
Other comprehensive (loss) income before reclassifications	[1],[2]	(14.0)	(12.8)
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	0.0	0.0
Net current period other comprehensive (loss) income	[1]	(14.0)	(12.8)
Ending Balance	[1]	(14.8)	(0.8)	12.0
Net unrealized foreign currency translation loss		4.5	3.5
Net foreign currency translation loss		0.9	0.2
Retirement Benefit Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	[1]	(21.8)	(12.3)
Other comprehensive (loss) income before reclassifications	[1]	0.2	(10.7)
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	1.5	1.2
Net current period other comprehensive (loss) income	[1]	1.7	(9.5)
Ending Balance	[1]	(20.1)	(21.8)	$ (12.3)
Retirement benefit loss		$ 0.1	$ 0.2

[1] All amounts are net of tax and noncontrolling interests.

[2] Include losses of $4.5 million and $3.5 million on intra-entity foreign currency transactions that are of a long-term-investment nature; also include losses of $0.9 million and $0.2 million for the years ended January 1, 2016 and December 26, 2014 related to noncontrolling interest.