Consolidated Statements of Equity (Parenthetical) $ in Millions	12 Months Ended
	Sep. 27, 2015 USD ($) $ / shares	Sep. 28, 2014 USD ($) $ / shares	Sep. 29, 2013 USD ($) $ / shares
Statement of Stockholders' Equity [Abstract]
Tax benefit from exercise of stock options/vesting of RSUs	$ 131.3	$ 114.8	$ 259.9
Tax benefit from sale of common stock	$ 0.2	$ 0.2	$ 0.2
Cash dividends declared per share | $ / shares	$ 0.680	$ 0.550	$ 0.445