Notional Amounts of Outstanding Derivative Instruments and Credit Risk Amounts Associated with Outstanding or Unsettled Derivative Instruments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014
Derivatives Designated as Hedging Instruments \| Foreign exchange contracts
Derivative [Line Items]
Notional Amount	$ 55,761	$ 42,945
Credit Risk	3,561	1,333
Derivatives Designated as Hedging Instruments \| Interest rate contracts
Derivative [Line Items]
Notional Amount	15,513	12,000
Credit Risk	201	89
Not Designated as Hedging Instrument \| Foreign exchange contracts
Derivative [Line Items]
Notional Amount	39,872	38,510
Credit Risk	$ 501	$ 222

- Definition

Credit risk amount of foreign currency derivative instruments designated as hedging instruments as of the balance sheet date.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Gross exposure to potential accounting loss on outstanding or unsettled derivative instruments that if all counterparties failed to perform according to the terms of the contract.

+ References

No definition available.

+ Details

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- Definition

Credit risk amount of interest rate derivative instruments designated as hedging instruments as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	aapl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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- Details

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- Details

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- Details

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