Condensed Consolidated and Combined Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 28, 2013	Sep. 28, 2012
Statement of Financial Position [Abstract]
Accounts receivable trade, allowance for doubtful accounts	$ 4.5	$ 9.4
Ordinary shares, par value (in usd per share)	$ 0.20	$ 0
Ordinary shares, authorized (in shares)	500,000,000	0
Ordinary shares, issued (in shares)	57,694,885	0
Ordinary stock, outstanding (in shares)	57,694,885
Preferred shares, par value (in usd per share)	$ 0.20	$ 0
Preferred shares, authorized (in shares)	500,000,000	0
Preferred shares, issued (in shares)	0	0