Significant Accounting Policies (Standard Warranty and Extended Warranty Tables) (Details 3) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Standard Warranty Liability
Balance at January 1	$ 197	$ 376
Current period accruals	173	240
Accrual adjustments to reflect actual experience	7	(120)
Charges incurred	(196)	(298)
Balance at December 31	181	197
Extended Warranty Liability (Deferred Income)
Current portion	11,021	11,877
Noncurrent portion	3,771	3,691
Industry Standard x86 Server Portfolio
Standard Warranty Liability
Accrual adjustments to reflect actual experience		(125)
Extended Warranty Liability (Deferred Income)
Extended Warranty Liability (Deferred Income)
Balance at January 1	536	579
Revenue deferred for new extended warranty contracts	286	298
Amortization of deferred revenue	(253)	(316)
Other	(31)	(24)
Balance at December 31	538	536
Current portion	238	254
Noncurrent portion	$ 300	282
Extended Warranty Liability (Deferred Income) \| Industry Standard x86 Server Portfolio
Extended Warranty Liability (Deferred Income)
Amortization of deferred revenue		$ (21)

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties.

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard product warranties (including adjustments related to changes in estimates). Does not include any Increase or Decrease in the liability for accruals related to extended product warranties.

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Represents the aggregate increase in the liability for accruals related to standard product warranties issued during the reporting period. Does not include any increase in the liability for accruals related to extended product warranties.

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