Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Numerator:
Net income	$ 36,330	$ 33,916
Denominator:
Weighted-average basic shares outstanding (in shares)	15,081,724	15,509,763
Effect of dilutive share-based awards (in shares)	69,141	66,878
Weighted-average diluted shares (in shares)	15,150,865	15,576,641
Basic earnings per share (in dollars per share)	$ 2.41	$ 2.19
Diluted earnings per share (in dollars per share)	$ 2.40	$ 2.18