Tyco Electronics Group S.A. - Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2016	Jun. 24, 2016	Mar. 25, 2016	Dec. 25, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Dec. 26, 2014	Sep. 30, 2016	Sep. 25, 2015	Sep. 26, 2014
Tyco Electronics Group S.A.
Ownership percentage in TEGSA	100.00%								100.00%
Statement of Operations Detail:
Net sales	$ 3,332	$ 3,121	$ 2,952	$ 2,833	$ 2,984	$ 3,118	$ 3,082	$ 3,049	$ 12,238	$ 12,233	$ 11,973
Cost of sales									8,205	8,146	8,001
Gross margin	1,104	1,022	962	945	968	1,048	1,051	1,020	4,033	4,087	3,972
Selling, general, and administrative expenses									1,463	1,504	1,534
Research, development, and engineering expenses									644	627	583
Acquisition and integration costs	3	11	3	5	9	8	14	24	22	55	31
Restructuring and other charges (credits), net	30	31	(99)	40	70	19	38	25	2	152	19
Operating income									1,902	1,749	1,805
Interest income									19	17	19
Interest expense, net									(127)	(136)	(127)
Other income (expense), net									(632)	(55)	63
Income from continuing operations before income taxes									1,162	1,575	1,760
Income tax (expense) benefit									779	(337)	(146)
Income from continuing operations	437	791	389	324	136	351	316	435	1,941	1,238	1,614
Income (loss) from discontinued operations, net of income taxes		48	(9)	29	904	(42)	283	37	68	1,182	167
Net Income	$ 437	$ 839	$ 380	$ 353	$ 1,040	$ 309	$ 599	$ 472	2,009	2,420	1,781
Other comprehensive loss									(169)	(356)	(320)
Comprehensive income									1,840	2,064	1,461
Consolidating Adjustments
Statement of Operations Detail:
Equity in net income of subsidiaries									(4,400)	(3,716)	(5,401)
Equity in net income (loss) of subsidiaries of discontinued operations									(235)	(1,547)	(334)
Income from continuing operations before income taxes									(4,635)	(5,263)	(5,735)
Income from continuing operations									(4,635)	(5,263)	(5,735)
Net Income									(4,635)	(5,263)	(5,735)
Other comprehensive loss									312	724	648
Comprehensive income									(4,323)	(4,539)	(5,087)
TE Connectivity Ltd. | Consolidating Reportable entities
Statement of Operations Detail:
Selling, general, and administrative expenses									168	163	131
Restructuring and other charges (credits), net									2
Operating income									(170)	(163)	(131)
Other income (expense), net											18
Equity in net income of subsidiaries									2,139	1,398	1,729
Equity in net income (loss) of subsidiaries of discontinued operations									67	1,182	167
Intercompany interest income (expense), net									(28)	3	(2)
Income from continuing operations before income taxes									2,008	2,420	1,781
Income from continuing operations									2,008	2,420	1,781
Income (loss) from discontinued operations, net of income taxes									1
Net Income									2,009	2,420	1,781
Other comprehensive loss									(169)	(356)	(320)
Comprehensive income									1,840	2,064	1,461
TEGSA | Consolidating Reportable entities
Statement of Operations Detail:
Selling, general, and administrative expenses									95	835	1,877
Restructuring and other charges (credits), net									(1)
Operating income									(94)	(835)	(1,877)
Interest expense, net									(126)	(135)	(126)
Other income (expense), net											(3)
Equity in net income of subsidiaries									2,261	2,318	3,672
Equity in net income (loss) of subsidiaries of discontinued operations									168	365	167
Intercompany interest income (expense), net									98	50	63
Income from continuing operations before income taxes									2,307	1,763	1,896
Income from continuing operations									2,307	1,763	1,896
Income (loss) from discontinued operations, net of income taxes									(101)	817
Net Income									2,206	2,580	1,896
Other comprehensive loss									(169)	(356)	(320)
Comprehensive income									2,037	2,224	1,576
Intercompany transaction gains (losses)									(80)	(846)	(1,874)
Other Subsidiaries | Consolidating Reportable entities
Statement of Operations Detail:
Net sales									12,238	12,233	11,973
Cost of sales									8,205	8,146	8,001
Gross margin									4,033	4,087	3,972
Selling, general, and administrative expenses									1,200	506	(474)
Research, development, and engineering expenses									644	627	583
Acquisition and integration costs									22	55	31
Restructuring and other charges (credits), net									1	152	19
Operating income									2,166	2,747	3,813
Interest income									19	17	19
Interest expense, net									(1)	(1)	(1)
Other income (expense), net									(632)	(55)	48
Intercompany interest income (expense), net									(70)	(53)	(61)
Income from continuing operations before income taxes									1,482	2,655	3,818
Income tax (expense) benefit									779	(337)	(146)
Income from continuing operations									2,261	2,318	3,672
Income (loss) from discontinued operations, net of income taxes									168	365	167
Net Income									2,429	2,683	3,839
Other comprehensive loss									(143)	(368)	(328)
Comprehensive income									$ 2,286	$ 2,315	$ 3,511