Taxes on Earnings - Schedule of Taxes on Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 26, 2014
Current provision:
Federal	$ 89.4	$ 52.8	$ 86.6
State and local	10.4	8.4	6.1
Foreign	77.8	76.1	62.2
Total current	177.6	137.3	154.9
Deferred provision (benefit):
Federal	(13.6)	2.5	5.0
State and local	(1.2)	(0.6)	(0.1)
Foreign	(9.1)	3.5	11.0
Total deferred	(23.9)	5.4	15.9
Taxes on earnings	$ 153.7	$ 142.7	$ 170.8