Tyco Electronics Group S.A. (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Dec. 26, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013
Tyco Electronics Group S.A.
Ownership percentage in TEGSA	100.00%								100.00%
Statement of operations detail:
Net sales	$ 2,984	$ 3,118	$ 3,082	$ 3,049	$ 3,072	$ 3,075	$ 2,964	$ 2,862	$ 12,233	$ 11,973	$ 11,390
Cost of sales									8,146	8,001	7,739
Gross margin	968	1,048	1,051	1,020	1,014	1,018	995	945	4,087	3,972	3,651
Selling, general, and administrative expenses									1,504	1,534	1,440
Research, development, and engineering expenses									627	583	590
Acquisition and integration costs	9	8	14	24	29	1	1		55	31	14
Restructuring and other charges, net	70	19	38	25	4	10	(1)	6	152	19	222
Operating income									1,749	1,805	1,385
Interest income									17	19	17
Interest expense									(136)	(127)	(139)
Other income (expense), net									(55)	63	(183)
Income from continuing operations before income taxes									1,575	1,760	1,080
Income tax (expense) benefit									(337)	(146)	75
Income from continuing operations									1,238	1,614	1,155
Income from discontinued operations, net of income taxes									1,182	167	122
Net income									2,420	1,781	1,277
Less: net income attributable to noncontrolling interests											(1)
Net income attributable to TE Connectivity Ltd.	$ 1,040	$ 309	$ 599	$ 472	$ 663	$ 403	$ 362	$ 353	2,420	1,781	1,276
Other comprehensive income (loss)									(356)	(320)	74
Comprehensive income attributable to TE Connectivity Ltd.									2,064	1,461	1,350
Consolidating Adjustments
Statement of operations detail:
Equity in net income of subsidiaries									(3,716)	(5,401)	(2,734)
Equity in net income of subsidiaries of discontinued operations									(1,547)	(334)	(244)
Income from continuing operations before income taxes									(5,263)	(5,735)	(2,978)
Income from continuing operations									(5,263)	(5,735)	(2,978)
Net income											(2,978)
Net income attributable to TE Connectivity Ltd.									(5,263)	(5,735)	(2,978)
Other comprehensive income (loss)									724	648	(138)
Comprehensive income attributable to TE Connectivity Ltd.									(4,539)	(5,087)	(3,116)
TE Connectivity Ltd. | Reportable entities
Statement of operations detail:
Selling, general, and administrative expenses									163	131	156
Operating income									(163)	(131)	(156)
Other income (expense), net										18
Equity in net income of subsidiaries									1,398	1,729	1,323
Equity in net income of subsidiaries of discontinued operations									1,182	167	122
Intercompany interest income (expense), net									3	(2)	(13)
Income from continuing operations before income taxes									2,420	1,781	1,276
Income from continuing operations									2,420	1,781	1,276
Net income											1,276
Net income attributable to TE Connectivity Ltd.									2,420	1,781	1,276
Other comprehensive income (loss)									(356)	(320)	74
Comprehensive income attributable to TE Connectivity Ltd.									2,064	1,461	1,350
TEGSA | Reportable entities
Statement of operations detail:
Selling, general, and administrative expenses									835	1,877	3
Operating income									(835)	(1,877)	(3)
Interest expense									(135)	(126)	(135)
Other income (expense), net										(3)
Equity in net income of subsidiaries									2,318	3,672	1,411
Equity in net income of subsidiaries of discontinued operations									365	167	122
Intercompany interest income (expense), net									50	63	54
Income from continuing operations before income taxes									1,763	1,896	1,449
Income tax (expense) benefit											(4)
Income from continuing operations									1,763	1,896	1,445
Income from discontinued operations, net of income taxes									817
Net income											1,445
Net income attributable to TE Connectivity Ltd.									2,580	1,896	1,445
Other comprehensive income (loss)									(356)	(320)	74
Comprehensive income attributable to TE Connectivity Ltd.									2,224	1,576	1,519
Intercompany transactions losses									846	1,874
Other Subsidiaries | Reportable entities
Statement of operations detail:
Net sales									12,233	11,973	11,390
Cost of sales									8,146	8,001	7,739
Gross margin									4,087	3,972	3,651
Selling, general, and administrative expenses									506	(474)	1,281
Research, development, and engineering expenses									627	583	590
Acquisition and integration costs									55	31	14
Restructuring and other charges, net									152	19	222
Operating income									2,747	3,813	1,544
Interest income									17	19	17
Interest expense									(1)	(1)	(4)
Other income (expense), net									(55)	48	(183)
Intercompany interest income (expense), net									(53)	(61)	(41)
Income from continuing operations before income taxes									2,655	3,818	1,333
Income tax (expense) benefit									(337)	(146)	79
Income from continuing operations									2,318	3,672	1,412
Income from discontinued operations, net of income taxes									365	167	122
Net income											1,534
Less: net income attributable to noncontrolling interests											(1)
Net income attributable to TE Connectivity Ltd.									2,683	3,839	1,533
Other comprehensive income (loss)									(368)	(328)	64
Comprehensive income attributable to TE Connectivity Ltd.									$ 2,315	$ 3,511	$ 1,597