Income Taxes (Provision for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Sep. 28, 2014
Income Tax Disclosure [Abstract]
Current taxes: U.S. federal	$ 704.1	$ 801.0	$ 822.7
Current taxes: U.S. state and local	166.5	150.1	132.9
Current taxes: Foreign	218.5	172.2	128.8
Total current taxes	1,089.1	1,123.3	1,084.4
Deferred taxes: U.S. federal	351.3	56.5	12.0
Deferred taxes: U.S. state and local	25.8	4.0	(4.9)
Deferred taxes: Foreign	(86.5)	(40.1)	0.5
Total deferred taxes	290.6	20.4	7.6
Total income tax expense	$ 1,379.7	$ 1,143.7	$ 1,092.0