CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015
Income Statement [Abstract]
Revenue from product sales	$ 1,487	$ 1,511	$ 4,293	$ 4,457
Service revenue	962	978	2,863	2,940
Net revenue	2,449	2,489	7,156	7,397
Cost of product sales	1,026	1,025	2,956	3,046
Cost of services	508	548	1,550	1,645
Selling, general and administrative expenses	667	625	1,842	1,925
Merger costs	7	0	33	0
Restructuring and asset impairment charges, net (see Note 4)	5	38	21	108
Operating (loss) income	236	253	754	673
Interest income	3	4	11	11
Interest expense	(22)	(26)	(68)	(75)
Other income (expense), net	54	6	(111)	9
Income from continuing operations before income taxes	271	237	586	618
Income tax expense	(31)	(49)	(130)	(86)
Income from continuing operations	240	188	456	532
(Loss) income from discontinued operations, net of income taxes	(2)	(32)	3	(50)
Net income	238	156	459	482
Less: noncontrolling interest in subsidiaries net loss	(1)	0	(2)	(3)
Net income attributable to Tyco ordinary shareholders	239	156	461	485
Amounts attributable to Tyco ordinary shareholders:
Income from continuing operations	241	188	458	535
(Loss) income from discontinued operations	(2)	(32)	3	(50)
Net income attributable to Tyco ordinary shareholders	$ 239	$ 156	$ 461	$ 485
Basic earnings per share attributable to Tyco ordinary shareholders:
Income from continuing operations (in dollars per share)	$ 0.57	$ 0.45	$ 1.08	$ 1.27
Loss from discontinued operations (in dollars per share)	(0.01)	(0.08)	0.00	(0.12)
Net income attributable to Tyco ordinary shareholders (in dollars per share)	0.56	0.37	1.08	1.15
Diluted earnings per share attributable to Tyco ordinary shareholders:
Income from continuing operations (in dollars per share)	0.56	0.44	1.07	1.25
(Loss) income from discontinued operations (in dollars per share)	0.00	(0.07)	0.01	(0.11)
Net income attributable to Tyco ordinary shareholders (in dollars per share)	$ 0.56	$ 0.37	$ 1.08	$ 1.14
Weighted average number of shares outstanding:
Basic (in shares)	426	421	425	421
Diluted (in shares)	429	427	428	427