Divestitures (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on sale of discontinued operations	$ 1,179,000,000	$ 0	$ 1,175,000,000	$ 0
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee [Abstract]
Sale of equity investment			250,000,000	0
Cash true-up adjustment	0	59,000,000		14,000,000
(Gain) loss on divestitures	(1,000,000)	(4,000,000)	2,000,000	(10,000,000)
Tyco Fire & Security Services Korea Co. Ltd.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	1,930,000,000
Pre-tax gain on sale of discontinued operations	1,000,000,000
Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation	212,000,000
Atkore
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee [Abstract]
Sale of equity investment	250,000,000
Possible Proceeds Adjustment from Sale of Equity Method Investments	25,000,000
Equity Method Investment, Realized Gain on Disposal	216,000,000
Gain on the Sale of Equity Investment	227,000,000
Loss on Extinguishment of Debt	11,000,000
ROW Installation & Services
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee [Abstract]
Disposal Group, Including Discontinued Operation, Loss (Gain) on Write-down