Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jan. 01, 2017	Dec. 27, 2015	Oct. 02, 2016
Equity [Abstract]
Authorized shares of common stock	2,400,000,000		2,400,000,000
Par value of common stock	$ 0.001		$ 0.001
Authorized shares of preferred stock	7,500,000
Outstanding shares of preferred stock	0
Shares of common stock repurchased	7,600,000	4,500,000
Total cost of common stock repurchased	$ 413.7	$ 267.1
Shares available for repurchase	110,200,000
Cash dividend declared to shareholders	$ 0.25
Dividends payable, payment date	Feb. 24, 2017
Dividends payable, record date	Feb. 09, 2017