Business Combinations (Details) - USD ($) $ in Millions		6 Months Ended
	Mar. 21, 2016	May 31, 2016
Business Acquisition [Line Items]
Amortizing intangible assets acquired		$ 376
Goodwill acquired		789
CARPROOF [Member]
Business Acquisition [Line Items]
Purchase price, net of cash acquired		460
OPIS [Member]
Business Acquisition [Line Items]
Purchase price, net of cash acquired		$ 654
Markit acquisition [Member]
Business Acquisition [Line Items]
Exchange ratio	3.5566