The percent of goodwill arising from a business combination that is expected to be deductible for tax purposes.

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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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 transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
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-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Details

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- Details

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- Details

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Acquisitions/Divestitures (Narratives) (Details 1) $ in Millions			3 Months Ended
	Apr. 08, 2016 USD ($)	Jan. 29, 2016 USD ($)	Mar. 31, 2016 USD ($) Acquisition	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Acquisitions:
Businesses acquired, number (in entities) \| Acquisition			6
Businesses acquired, aggregate cost			$ 2,642
Goodwill			34,322	$ 32,021	$ 30,556
Technology Services & Cloud Platforms
Acquisitions:
Goodwill			10,358	10,156	9,373
Global Business Services
Acquisitions:
Goodwill			4,569	4,396	4,555
Cognitive Solutions
Acquisitions:
Goodwill			$ 17,533	$ 15,621	$ 15,156
Other Acquisitions
Acquisitions:
Acquired intangible asset, weighted average useful life			6 years 2 months
Expected percent of goodwill deductible for tax purposes			40.00%
Goodwill			$ 192
Other Acquisitions \| Technology Services & Cloud Platforms
Acquisitions:
Businesses acquired, number (in entities) \| Acquisition			2
Goodwill			$ 91
Other Acquisitions \| Global Business Services
Acquisitions:
Businesses acquired, number (in entities) \| Acquisition			3
Goodwill			$ 101
The Weather Company
Acquisitions:
Acquired intangible asset, weighted average useful life			6 years 11 months
Expected percent of goodwill deductible for tax purposes		0.00%
Goodwill			$ 1,723
Businesses acquired, cash consideration		$ 2,284
The Weather Company \| Cognitive Solutions
Acquisitions:
Goodwill		$ 1,723
Truven Health Analytics \| Subsequent event
Acquisitions:
Businesses acquired, cash consideration	$ 2,600