Share Plans (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014
Shared Based Compensation Arrangements:
Number of awards, issued (in shares)	3.0
Schedule of weighted average assumptions
Fair value assumption, expected stock price volatility (as a percent)	33.00%
Fair value assumption, risk-free interest rate (as a percent)	1.63%
Fair value assumption, expected annual dividend, per share (in dollars per share)	$ 0.64
Fair value assumption, expected option life	5 years 6 months
Performance Share Awards
Shared Based Compensation Arrangements:
Awards granted, other than options, number (in shares)	0.6
Awards granted, other than options, weighted-average grant-date fair value (in dollars per share)	$ 39.01
Award vesting period	3 years
Share Options
Shared Based Compensation Arrangements:
Awards granted, options, number (in shares)	1.9
Awards granted, options, weighted-average grant-date fair value (in dollars per share)	$ 10.12
Award vesting period	4 years
Restricted Stock Awards
Shared Based Compensation Arrangements:
Awards granted, other than options, number (in shares)	0.5
Awards granted, other than options, weighted-average grant-date fair value (in dollars per share)	$ 37.15
Award vesting period		4 years	4 years