Share-Based Compensation - Summary of Share-Based Compensation Expense and the Related Income Tax Benefit (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Share-Based Payment Arrangement [Abstract]
Share-based compensation expense	$ 3,528	$ 3,226	$ 7,122	$ 6,512
Income tax benefit related to share-based compensation expense	$ (802)	$ (743)	$ (2,095)	$ (2,075)