Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2012	Jun. 24, 2011	Jun. 29, 2012	Jun. 24, 2011
Income
Income from continuing operations	$ 252	$ 363	$ 919	$ 1,172
Income from continuing operations attributable to Tyco common shareholders, giving effect to dilutive adjustments	$ 252	$ 363	$ 919	$ 1,172
Shares
Income from continuing operations (in shares)	463	468	463	476
Share options, restricted share awards	7	7	6	5
Income from continuing operations attributable to Tyco common shareholders, giving effect to dilutive adjustments (in shares)	470	475	469	481
Per Share Amount
Income from continuing operations (in dollars per share)	$ 0.54	$ 0.78	$ 1.98	$ 2.46
Income (loss) from continuing operations attributable to Tyco common shareholders, giving effect to dilutive adjustments (in dollars per share)	$ 0.54	$ 0.76	$ 1.96	$ 2.44
Stock Options
Earnings Per Share
Stock options and restricted stock excluded from the computation of earnings per share	6	6	8	10
Restricted Stock
Earnings Per Share
Stock options and restricted stock excluded from the computation of earnings per share				1