Consolidated Statements of Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Statement of Stockholders' Equity [Abstract]
Tax benefit from exercise of stock options/vesting of RSUs	$ 114.8	$ 259.9	$ 167.3
Tax benefit from sale of common stock	$ 0.2	$ 0.2	$ 0.2
Cash dividends declared per share	$ 1.10	$ 0.89	$ 0.72