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Goodwill and acquisition-related intangibles - Acquisition-related intangibles (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, gross carrying amount | $ 2,948us-gaap_FiniteLivedIntangibleAssetsGross | $ 2,991us-gaap_FiniteLivedIntangibleAssetsGross | |
| Acquisition-related intangibles, accumulated amortization | 1,046us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | 768us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | |
| Acquisition-related intangibles, net | 1,902us-gaap_FiniteLivedIntangibleAssetsNet | 2,223us-gaap_FiniteLivedIntangibleAssetsNet | |
| Amortization of acquisition-related intangibles | 321us-gaap_AmortizationOfIntangibleAssets | 336us-gaap_AmortizationOfIntangibleAssets | 342us-gaap_AmortizationOfIntangibleAssets |
| Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] | |||
| 2015 | 319us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths | ||
| 2016 | 319us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo | ||
| 2017 | 318us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree | ||
| 2018 | 318us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour | ||
| 2019 | 288us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive | ||
| Thereafter | 340us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive | ||
| Developed technology | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, gross carrying amount | 2,135us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
2,157us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
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| Acquisition-related intangibles, accumulated amortization | 714us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
526us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
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| Acquisition-related intangibles, net | 1,421us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
1,631us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
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| Customer relationships | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, amortization period | 8 years | ||
| Acquisition-related intangibles, gross carrying amount | 810us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
821us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
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| Acquisition-related intangibles, accumulated amortization | 330us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
239us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
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| Acquisition-related intangibles, net | 480us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
582us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
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| Other intangibles | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, amortization period | 5 years | ||
| Acquisition-related intangibles, gross carrying amount | 3us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
5us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
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| Acquisition-related intangibles, accumulated amortization | 2us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
3us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
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| Acquisition-related intangibles, net | 1us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
2us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
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| In-process R&D | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, gross carrying amount | 0us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
8us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
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| Acquisition-related intangibles, net | $ 0us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
$ 8us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
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| Minimum | Developed technology | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, amortization period | 5 years | ||
| Maximum | Developed technology | |||
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Acquisition-related intangibles, amortization period | 10 years | ||
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- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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