Commitments and Contingencies
 9 Months Ended
Aug. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies [Text Block]
Commitments and Contingencies

From time to time, in the ordinary course of our business, we are involved in various legal proceedings, lawsuits, and other claims, including employment, commercial, intellectual property, and environmental, safety, and health matters. In addition, we may receive routine requests for information from governmental agencies in connection with their regulatory or investigatory authority. We review such proceedings, lawsuits, claims, and requests for information and take appropriate action as necessary. At the present time, we can give no assurance as to the outcome of any such pending proceedings, lawsuits, claims, or requests for information and we are unable to determine the ultimate resolution of or provide a reasonable estimate of the range of possible loss attributable to these matters or the effect they may have on us. However, we do not expect the outcome of such proceedings, lawsuits, claims, or requests for information to have a material adverse effect on our results of operations or financial condition. We have and will continue to vigorously defend ourselves in all matters.

On April 23, 2013 (prior to our acquisition of R.L. Polk & Co.), our CARFAX subsidiary (CARFAX) was served with a complaint filed in the U.S. District Court for the Southern District of New York, purportedly on behalf of certain auto and light truck dealers. The complaint alleges, among other things, that, in violation of antitrust laws, CARFAX entered into exclusive arrangements regarding the sale of CARFAX vehicle history reports with certain auto manufacturers and owners of two websites providing classified listings of used autos and light trucks. The complaint seeks three times the actual damages that a jury finds the plaintiffs have sustained, injunctive relief, costs and attorneys’ fees. On October 25, 2013, the plaintiffs served a second amended complaint with similar allegations purporting to name approximately 469 auto dealers as plaintiffs, and counsel for plaintiffs indicated that there may be additional claimants. On September 30, 2016, the District Court granted CARFAX's motion for summary judgment, dismissing all claims in the complaint.

Between 2011 and 2016, we and other market participants responded to a civil investigation by the Competition Directorate General of the European Commission (EC) related to the credit default swaps information industry with a primary focus on the activities of certain major international investment banks, the International Swaps and Derivatives Association and IHS Markit. In July 2016, the EC formally adopted a set of commitments with us which constitute a full resolution of the investigation with respect to us without any finding of wrongdoing or monetary liability (Final Commitments). In the Final Commitments, we agreed to certain obligations regarding the governance and composition of the index advisory committees for our CDX and iTraxx CDS indices and the licensing of these indices for certain exchange-traded products. In May 2009, the Antitrust Division of the United States Department of Justice (DOJ) had initiated a similar civil investigation related to the credit default swaps information industry, for which we produced documents and participated in depositions conducted by the DOJ. In September 2016, the DOJ confirmed that it had closed its investigation.

In October 2015, the Division of Enforcement of the SEC opened a non-public civil investigation related to certain of our current and former securitized product indices, and requested that we provide certain documents and information. We responded to these inquiries in late 2015 and early 2016, and, to the extent the SEC has further inquiries, will continue to cooperate in this matter.