v3.25.1
Financial Instruments and Fair Value Measurements, Assets Measured at Fair Value on Non-Recurring Basis (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Mar. 29, 2025
Sep. 28, 2024
Impairment [Abstract]    
Indefinite-lived trademarks $ 0 $ 0
Goodwill 0 0
Definite lived intangible assets 0 0
Property, plant and equipment 1 8
Impairment charges 1 8
Fair Value Adjustment [Abstract]    
Fair value of long-term indebtedness greater/(less) than book value (30)  
Fair Value on Non-Recurring Basis [Member]    
Fair Value of Assets [Abstract]    
Indefinite-lived trademarks 207 207
Goodwill 4,173 4,295
Definite lived intangible assets 970 1,086
Property, plant and equipment 3,534 3,627
Total 8,884 9,215
Fair Value on Non-Recurring Basis [Member] | Level 1 [Member]    
Fair Value of Assets [Abstract]    
Indefinite-lived trademarks 0 0
Goodwill 0 0
Definite lived intangible assets 0 0
Property, plant and equipment 0 0
Total 0 0
Fair Value on Non-Recurring Basis [Member] | Level 2 [Member]    
Fair Value of Assets [Abstract]    
Indefinite-lived trademarks 0 0
Goodwill 0 0
Definite lived intangible assets 0 0
Property, plant and equipment 0 0
Total 0 0
Fair Value on Non-Recurring Basis [Member] | Level 3 [Member]    
Fair Value of Assets [Abstract]    
Indefinite-lived trademarks 207 207
Goodwill 4,173 4,295
Definite lived intangible assets 970 1,086
Property, plant and equipment 3,534 3,627
Total $ 8,884 $ 9,215