Acquisitions and Divestitures (Narrative) (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations $ in Billions	1 Months Ended
Feb. 29, 2016 business	Apr. 30, 2016 USD ($)
SPSE and CMA \| S&P Global Market Intelligence
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of businesses to be sold \| business	2
Subsequent Event \| J.D. Power \| C&C
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration for sale of business \| $		$ 1.1

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.

No definition available.

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