Shareholders' Equity - Additional Information (Detail) (USD $) In Billions, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014
Stockholders Equity Note Disclosure [Line Items]
Maximum amount authorized for repurchase of common stock		$ 90
Share repurchase program, utilized amount	$ 72.9

The total amount utilized to date under share repurchase program.

No definition available.

Name:	aapl_AmountUtilizedUnderShareRepurchaseProgram
Namespace Prefix:	aapl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant