Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
Financial Instruments (Details) - USD ($) $ in Millions	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024	Sep. 27, 2024
Cash flow hedges \| Commodity swap contracts
Financial Instruments
Notional amount	$ 527		$ 527		$ 488
Gains recorded in other comprehensive income (loss)	7	$ 23	59	$ 62
Gains reclassified from accumulated other comprehensive income (loss) into cost of sales	16	8	38	4
Net investment hedges \| Intercompany loans and external borrowings
Financial Instruments
Notional amount of non-derivative instruments	4,206				2,417
Foreign currency exchange gains (losses) on intercompany loans and external borrowings	(228)	29	(189)	7
Net investment hedges \| Cross-currency swap contracts
Financial Instruments
Notional amount	$ 5,665		$ 5,665		5,367
Interest paid in foreign currency, fixed interest rate	0.00%		0.00%
Interest received in U.S. dollars, weighted-average fixed interest rate	2.00%		2.00%
Gains (losses) on cross-currency swap contracts designated as hedges of net investment	$ (336)	$ 48	$ (158)	$ 10
Prepaid expenses and other current assets \| Cash flow hedges \| Commodity swap contracts
Financial Instruments
Fair Value of Asset Positions	74		74		52
Prepaid expenses and other current assets \| Net investment hedges \| Cross-currency swap contracts
Financial Instruments
Fair Value of Asset Positions	16		16		31
Other assets \| Cash flow hedges \| Commodity swap contracts
Financial Instruments
Fair Value of Asset Positions	7		7		4
Other assets \| Net investment hedges \| Cross-currency swap contracts
Financial Instruments
Fair Value of Asset Positions	9		9		11
Accrued and other current liabilities \| Cash flow hedges \| Commodity swap contracts
Financial Instruments
Fair Value of Liability Positions	2		2		1
Accrued and other current liabilities \| Net investment hedges \| Cross-currency swap contracts
Financial Instruments
Fair Value of Liability Positions	108		108		51
Other liabilities \| Cash flow hedges \| Commodity swap contracts
Financial Instruments
Fair Value of Liability Positions	2		2
Other liabilities \| Net investment hedges \| Cross-currency swap contracts
Financial Instruments
Fair Value of Liability Positions	$ 251		$ 251		$ 99

TE Connectivity plc 10-Q