Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Numerator:
Net income	$ 29,578	$ 24,780	$ 71,675	$ 61,110
Denominator:
Weighted-average basic shares outstanding (in shares)	14,673,278	14,994,082	14,710,718	15,037,903
Effect of dilutive share-based awards (in shares)	52,595	62,051	57,397	65,596
Weighted-average diluted shares (in shares)	14,725,873	15,056,133	14,768,115	15,103,499
Basic earnings per share (in dollars per share)	$ 2.02	$ 1.65	$ 4.87	$ 4.06
Diluted earnings per share (in dollars per share)	$ 2.01	$ 1.65	$ 4.85	$ 4.05