Financial Instruments and Fair Value Measurements - Assets Measured at Fair Value on Non-Recurring Basis (Details) - Fair Value on Non-Recurring [Member] - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024
Financial Instruments and Fair Value Measurements [Abstract]
Indefinite lived trademarks	$ 26	$ 26
Impairment, indefinite lived trademarks		0
Goodwill	663	624
Impairment, goodwill	0	(171)
Definite lived intangible assets	201	200
Impairment, definite lived intangible assets	0	(1)
Property, plant and equipment	1,476	949
Impairment, property, plant and equipment	0	0
Total	2,366	1,799
Impairment, Total	0	(172)
Level 3 [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Indefinite lived trademarks	26	26
Goodwill	663	624
Definite lived intangible assets	201	200
Property, plant and equipment	1,476	949
Total	2,366	1,799
Level 1 [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Indefinite lived trademarks		0
Goodwill	0	0
Definite lived intangible assets	0	0
Property, plant and equipment	0	0
Total	0	0
Level 2 [Member]
Financial Instruments and Fair Value Measurements [Abstract]
Indefinite lived trademarks		0
Goodwill	0	0
Definite lived intangible assets	0	0
Property, plant and equipment	0	0
Total	$ 0	$ 0