Equity (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Sep. 28, 2014
Equity [Abstract]
Authorized shares of common stock	1,200.0		1,200.0
Par value of common stock	$ 0.001		$ 0.001
Authorized shares of preferred stock	7.5
Outstanding shares of preferred stock	0
Shares of common stock repurchased	2.8	0.6
Total cost of common stock repurchased	$ 216.1	$ 46.7
Shares available for repurchase	13.1
Cash dividend declared to shareholders	$ 0.32
Dividends payable, payment date	Feb. 20, 2015
Dividends payable, record date	Feb. 05, 2015