Represents the number of divestitures completed during the period.

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Cash portion of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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No definition available.

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- Definition

Cumulative pre-tax gain (loss) on sale of business. This amount excludes any associated costs related to transition and performance based costs.

+ References

No definition available.

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- Definition

The cumulative total gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement. Includes prior periods amounts.

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No definition available.

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Total pre-tax gain (loss) on sale of business. This amount excludes any associated costs related to transition and performance based costs.

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No definition available.

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Period of expected continuing involvement with a disposal group that is not a discontinued operation after the disposal date, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Period of possible renewal for transitional services after the initial term has been completed, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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No definition available.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2443-110228

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-Section 50
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- Definition

Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

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Acquisitions/Divestitures (Divestitures) (Details 5) $ in Millions			3 Months Ended	12 Months Ended
	Jan. 23, 2014 USD ($)	Sep. 10, 2013 USD ($)	Mar. 31, 2016 USD ($) Divestiture	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Industry Standard x86 Server Portfolio \| Disposal group disposed of by sale, not discontinued operations
Divestitures
Disposal group, not discontinued operation, period of renewal of continuing involvement after transition services completed			1 year
Transaction price for sale of business	$ 2,100
Approximate amount of transaction price received in cash	$ 1,800
Pre-tax gain/(loss) on sale of business			$ 29	$ 63
Pre-tax gain on sale of business, net of transition and performance-based costs			1,300
Cumulative gain on sale of business, net of transition and performance-based costs			1,200
Industry Standard x86 Server Portfolio \| Estimated \| Disposal group disposed of by sale, not discontinued operations
Divestitures
Pre-tax gain/(loss) on sale of business			$ 1,600
Industry Standard x86 Server Portfolio \| Maximum \| Disposal group disposed of by sale, not discontinued operations
Divestitures
Disposal group, not discontinued operation, period of continuing involvement after disposal			3 years
Equity Ownership percent acquired	5.00%
Customer Care Business Process Outsourcing Services \| Disposal group disposed of by sale, not discontinued operations
Divestitures
Transaction price for sale of business		$ 501
Approximate amount of transaction price received in cash		430
Noncash consideration received on sale of business		$ 71
Pre-tax gain/(loss) on sale of business				$ 7	$ 202
Cumulative pre-tax gain/(loss) on sale of business			$ 209
Customer Care Business Process Outsourcing Services \| Maximum \| Disposal group disposed of by sale, not discontinued operations
Divestitures
Equity Ownership percent acquired		5.00%
Others
Divestitures
Pre-tax gain/(loss) on sale of business			$ 36
Number of divestitures \| Divestiture			4