Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 01, 2016	Apr. 03, 2015	Apr. 01, 2016	Apr. 03, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 208.1	$ 166.5	$ 563.4	$ 361.7
Other comprehensive income, net of tax
Foreign currency translation adjustment	(0.3)	0.8	(0.3)	(3.0)
Comprehensive income	$ 207.8	$ 167.3	$ 563.1	$ 358.7