Acquisitions (Details) $ / shares in Units, shares in Millions, $ in Millions			3 Months Ended
		Dec. 18, 2025 USD ($) shares	Dec. 28, 2025 USD ($) numberOfBusinesses $ / shares shares	Sep. 28, 2025 USD ($)
Acquisitions
Goodwill			$ 14,183	$ 11,358
Alphawave
Acquisitions
Business Combination, Consideration Transferred		$ 2,300
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Value		$ 1,800
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares | shares		11
Payments to Acquire Businesses, Gross		$ 301
Cash		51
Intangible assets subject to amortization		239
In-process research and development (IPR&D)		107
Goodwill		2,210
Other assets		316
Total assets		2,923
Convertible debt (1)	[1]	(278)
Other liabilities		(366)
Total liabilities		(644)
Net assets acquired		$ 2,279
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life		5 years
Business Combination, Goodwill, Expected Tax Deductible, Amount		$ 0
Alphawave | Exchangeable Shares
Acquisitions
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Value		453
Common Stock, No Par Value | $ / shares			$ 0
Common Stock, Shares Authorized, Unlimited [Fixed List]			Unlimited
Common Stock, Other Shares, Outstanding | shares			4
Exchangeable Shares Issued, Fair Value		$ 746
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period		4 years
Alphawave | Level 3 | Fair Value, Recurring
Acquisitions
Convertible Debt, Fair Value Disclosures			$ 279
2026 Other Business Acquisitions
Acquisitions
Payments to Acquire Businesses, Gross			846
Intangible assets subject to amortization			226
Goodwill			$ 611
Business Combination, Number of Businesses Acquired | numberOfBusinesses			4

[1] Alphawave's outstanding unsecured convertible bonds are expected to settle within approximately 60 days of the Closing Date. At December 28, 2025, the fair value of the convertible debt, based on Level 3 inputs, was approximately $279 million.