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 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 - 2016 Purchase Price Allocation (Details) - USD ($) $ in Millions			12 Months Ended
	Apr. 08, 2016	Jan. 29, 2016	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2015
ACQUISITIONS
Goodwill			$ 36,199	$ 36,788	$ 32,021
The Weather Company
ACQUISITIONS
Current assets		$ 76
Fixed assets/noncurrent assets		123
Goodwill		1,717
Total assets acquired		2,738
Current liabilities		(88)
Noncurrent liabilities		(372)
Total liabilities assumed		(460)
Total purchase price		$ 2,278
Acquired intangible asset, weighted average useful life		6 years 10 months 24 days
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
Truven Health Analytics
ACQUISITIONS
Current assets	$ 171
Fixed assets/noncurrent assets	127
Goodwill	1,933
Total assets acquired	3,141
Current liabilities	(148)
Noncurrent liabilities	(381)
Total liabilities assumed	(529)
Total purchase price	$ 2,612
Acquired intangible asset, weighted average useful life	6 years 10 months 24 days
Truven Health Analytics \| Completed technology
ACQUISITIONS
Intangible assets	$ 338
Truven Health Analytics \| Client relationships
ACQUISITIONS
Intangible assets	516
Truven Health Analytics \| Patents/trademarks
ACQUISITIONS
Intangible assets	$ 54
Other 2016 Acquisitions
ACQUISITIONS
Current assets			153
Fixed assets/noncurrent assets			110
Goodwill			593
Total assets acquired			1,220
Current liabilities			(96)
Noncurrent liabilities			(76)
Total liabilities assumed			(171)
Bargain purchase gain			(40)
Total purchase price			$ 1,009
Acquired intangible asset, weighted average useful life			6 years 3 months 18 days
Other 2016 Acquisitions \| Completed technology
ACQUISITIONS
Intangible assets			$ 96
Other 2016 Acquisitions \| Client relationships
ACQUISITIONS
Intangible assets			226
Other 2016 Acquisitions \| Patents/trademarks
ACQUISITIONS
Intangible assets			$ 42
Minimum \| 2016 Acquisitions \| Completed technology
ACQUISITIONS
Acquired intangible asset, weighted average useful life			1 year
Minimum \| 2016 Acquisitions \| Client relationships
ACQUISITIONS
Acquired intangible asset, weighted average useful life			3 years
Minimum \| 2016 Acquisitions \| Patents/trademarks
ACQUISITIONS
Acquired intangible asset, weighted average useful life			1 year
Maximum \| 2016 Acquisitions \| Completed technology
ACQUISITIONS
Acquired intangible asset, weighted average useful life			7 years
Maximum \| 2016 Acquisitions \| Client relationships
ACQUISITIONS
Acquired intangible asset, weighted average useful life			7 years
Maximum \| 2016 Acquisitions \| Patents/trademarks
ACQUISITIONS
Acquired intangible asset, weighted average useful life			7 years