Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of liabilities assumed at the acquisition date.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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Subsequent Events (Details) - USD ($) $ in Millions			3 Months Ended
Subsequent Events (Details) - USD ($) $ in Millions	Apr. 21, 2017	Apr. 18, 2017	Mar. 31, 2017	Mar. 31, 2016
Subsequent Event [Line Items]
Proceeds from Divestiture of Businesses and Interests in Affiliates			$ 4	$ 115
Subsequent Event [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 189
Proceeds from Divestiture of Businesses and Interests in Affiliates	$ 50
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		363
Business Combination, Contingent Consideration, Liability		$ 32