Accumulated Other Comprehensive Income (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 25, 2016	Mar. 27, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 0.9	$ 65.7
Other comprehensive (loss) income before reclassifications	(13.0)	(60.2)
Amounts reclassified from accumulated other comprehensive income	(53.0)	2.4
Net current period other comprehensive (loss) income	(66.0)	(57.8)
Ending balance	(65.1)	7.9
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	60.2	131.0
Other comprehensive (loss) income before reclassifications	(0.6)	(58.9)
Amounts reclassified from accumulated other comprehensive income	(58.7)	0.0
Net current period other comprehensive (loss) income	(59.3)	(58.9)
Ending balance	0.9	72.1
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(6.4)	(6.8)
Other comprehensive (loss) income before reclassifications	0.0	0.0
Amounts reclassified from accumulated other comprehensive income	0.3	0.2
Net current period other comprehensive (loss) income	0.3	0.2
Ending balance	(6.1)	(6.6)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(52.9)	(58.5)
Other comprehensive (loss) income before reclassifications	(12.4)	(1.3)
Amounts reclassified from accumulated other comprehensive income	5.4	2.2
Net current period other comprehensive (loss) income	(7.0)	0.9
Ending balance	$ (59.9)	$ (57.6)