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Shareholders' Equity - Additional Information (Detail) - USD ($) | Dec. 31, 2016 | Apr. 30, 2016 | Sep. 26, 2015
--- | --- | --- | ---
Equity [Abstract] |  |  |
Maximum amount authorized for repurchase of common stock |  | $ 175,000,000,000 | $ 140,000,000,000
Share repurchase program, utilized amount | $ 144,000,000,000 |  |

X
- Definition The total amount utilized to date under share repurchase program. + References No definition available. + Details
Name: | aapl_AmountUtilizedUnderShareRepurchaseProgram
Namespace Prefix: | aapl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant