Tyco Electronics Group S.A. - Balance Sheet (Details) - USD ($) $ in Millions	Mar. 27, 2020	Dec. 27, 2019	Sep. 27, 2019	Mar. 29, 2019	Dec. 28, 2018	Sep. 28, 2018
Current assets:
Cash and cash equivalents	$ 796		$ 927
Accounts receivable, net	2,461		2,320
Inventories	2,001		1,836
Prepaid expenses and other current assets	457		471
Total current assets	5,715		5,554
Property, plant, and equipment, net	3,558		3,574
Goodwill	5,235		5,740
Intangible assets, net	1,547		1,596
Deferred income taxes	2,382		2,776
Other assets	930		454
Total assets	19,367		19,694
Current liabilities:
Short-term debt	603		570
Accounts payable	1,390		1,357
Accrued and other current liabilities	1,966		1,613
Total current liabilities	3,959		3,540
Long-term debt	3,752		3,395
Long-term pension and postretirement liabilities	1,359		1,367
Deferred income taxes	126		156
Income taxes	228		239
Other liabilities	772		427
Total liabilities	10,196		9,124
Total equity	9,171	$ 10,557	10,570	$ 9,994	$ 10,236	$ 10,831
Total liabilities and equity	19,367		19,694
Consolidating Adjustments
Current assets:
Intercompany receivables	(3,695)		(3,068)
Total current assets	(3,695)		(3,068)
Investment in subsidiaries	(41,119)		(42,201)
Intercompany loans receivable	(18,608)		(18,595)
Total assets	(63,422)		(63,864)
Current liabilities:
Intercompany payables	(3,695)		(3,068)
Total current liabilities	(3,695)		(3,068)
Intercompany loans payable	(18,608)		(18,595)
Total liabilities	(22,303)		(21,663)
Total equity	(41,119)		(42,201)
Total liabilities and equity	(63,422)		(63,864)
TE Connectivity Ltd. | Reportable entities
Current assets:
Intercompany receivables	46		49
Prepaid expenses and other current assets	6		4
Total current assets	52		53
Investment in subsidiaries	13,418		13,865
Total assets	13,470		13,918
Current liabilities:
Accounts payable	1		1
Accrued and other current liabilities	655		328
Intercompany payables	3,643		3,019
Total current liabilities	4,299		3,348
Total liabilities	4,299		3,348
Total equity	9,171		10,570
Total liabilities and equity	13,470		13,918
TEGSA | Reportable entities
Current assets:
Intercompany receivables	3,590		2,959
Prepaid expenses and other current assets	32		36
Total current assets	3,622		2,995
Investment in subsidiaries	27,701		28,336
Intercompany loans receivable	2,568		2,562
Other assets	100		72
Total assets	33,991		33,965
Current liabilities:
Short-term debt	602		568
Accrued and other current liabilities	102		57
Total current liabilities	704		625
Long-term debt	3,752		3,395
Intercompany loans payable	16,040		16,033
Other liabilities	77		47
Total liabilities	20,573		20,100
Total equity	13,418		13,865
Total liabilities and equity	33,991		33,965
Other Subsidiaries | Reportable entities
Current assets:
Cash and cash equivalents	796		927
Accounts receivable, net	2,461		2,320
Inventories	2,001		1,836
Intercompany receivables	59		60
Prepaid expenses and other current assets	419		431
Total current assets	5,736		5,574
Property, plant, and equipment, net	3,558		3,574
Goodwill	5,235		5,740
Intangible assets, net	1,547		1,596
Deferred income taxes	2,382		2,776
Intercompany loans receivable	16,040		16,033
Other assets	830		382
Total assets	35,328		35,675
Current liabilities:
Short-term debt	1		2
Accounts payable	1,389		1,356
Accrued and other current liabilities	1,209		1,228
Intercompany payables	52		49
Total current liabilities	2,651		2,635
Intercompany loans payable	2,568		2,562
Long-term pension and postretirement liabilities	1,359		1,367
Deferred income taxes	126		156
Income taxes	228		239
Other liabilities	695		380
Total liabilities	7,627		7,339
Total equity	27,701		28,336
Total liabilities and equity	$ 35,328		$ 35,675