The aggregate of property, plant and equipment and other noncurrent assets recognized as of the acquisition date.

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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.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of assets acquired at the acquisition date.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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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.

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Acquisitions/Divestitures (Purchase Price allocation) (Details 2) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Acquisitions:
Goodwill	$ 34,322	$ 32,021	$ 30,556
Completed technology \| Minimum
Acquisitions:
Acquired intangible asset, weighted average useful life	2 years
Completed technology \| Maximum
Acquisitions:
Acquired intangible asset, weighted average useful life	7 years
Client relationships \| Minimum
Acquisitions:
Acquired intangible asset, weighted average useful life	3 years
Client relationships \| Maximum
Acquisitions:
Acquired intangible asset, weighted average useful life	7 years
Patents/trademarks \| Minimum
Acquisitions:
Acquired intangible asset, weighted average useful life	2 years
Patents/trademarks \| Maximum
Acquisitions:
Acquired intangible asset, weighted average useful life	7 years
Other Acquisitions
Acquisitions:
Current assets	$ 31
Fixed assets/noncurrent assets	68
Goodwill	192
Total assets acquired	455
Current liabilities	(21)
Noncurrent liabilities	(35)
Total liabilities assumed	(57)
Bargain purchase gain	(40)
Total purchase price	$ 358
Acquired intangible asset, weighted average useful life	6 years 2 months
Other Acquisitions \| Completed technology
Acquisitions:
Intangible assets	$ 24
Other Acquisitions \| Client relationships
Acquisitions:
Intangible assets	135
Other Acquisitions \| Patents/trademarks
Acquisitions:
Intangible assets	4
The Weather Company
Acquisitions:
Current assets	76
Fixed assets/noncurrent assets	123
Goodwill	1,723
Total assets acquired	2,744
Current liabilities	(88)
Noncurrent liabilities	(372)
Total liabilities assumed	(460)
Total purchase price	$ 2,284
Acquired intangible asset, weighted average useful life	6 years 11 months
The Weather Company \| Completed technology
Acquisitions:
Intangible assets	$ 160
The Weather Company \| Client relationships
Acquisitions:
Intangible assets	313
The Weather Company \| Patents/trademarks
Acquisitions:
Intangible assets	$ 349