Background and Basis of Presentation	3 Months Ended
Mar. 31, 2013
Accounting Policies [Abstract]
Background and Basis of Presentation	1. Background and Basis of Presentation *Background* The Nielsen Company B.V. (“Nielsen” or the “Company”), together with its subsidiaries, is a leading global information and measurement company that provides clients with a comprehensive understanding of consumers and consumer behavior. Nielsen is aligned into three reporting segments: what consumers buy (“Buy”), what consumers watch (“Watch”) and Expositions. Nielsen has a presence in approximately 100 countries, with its headquarters located in Diemen, the Netherlands and New York, USA. Nielsen’s parent company, Valcon Acquisition B.V. (“Valcon”), is a wholly-owned subsidiary of Nielsen Holdings N.V. (“Holdings”). *Basis of Presentation* The accompanying condensed consolidated financial statements are unaudited but, in the opinion of management, contain all the adjustments (consisting of those of a normal recurring nature) considered necessary to present fairly the Company’s financial position and the results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the U.S. (“U.S. GAAP”) applicable to interim periods. For a more complete discussion of significant accounting policies, commitments and contingencies and certain other information, refer to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. All amounts are presented in U.S. Dollars (“$”), except for share data or where expressly stated as being in other currencies, e.g., Euros (“€”). The condensed consolidated financial statements include the accounts of Nielsen and all subsidiaries and other controlled entities. The Company has evaluated events occurring subsequent to March 31, 2013 for potential recognition or disclosure in the condensed consolidated financial statements and concluded there were no subsequent events that required recognition or disclosure. *Devaluation of Venezuelan Currency* Nielsen has operations in both the Buy and Watch segments in Venezuela and the functional currency for these operations was the Venezuelan bolivares fuertes. Venezuela’s currency was considered hyperinflationary as of January 1, 2010 and further, in January 2010, Venezuela’s currency was devalued and a new currency exchange rate system was announced. In 2010, Nielsen evaluated the new exchange rate system and concluded that the local currency transactions will be denominated in U.S. dollars effective as of January 1, 2010 and until Venezuela’s currency is deemed to be non-hyperinflationary. In February 2013, the Venezuelan government devalued its currency by 32%. The official exchange rate moved from 4.30 to 6.30 and the regulated System of Transactions with Securities in Foreign Currency market was suspended. As a result of this change Nielsen recorded a charge of $12 million during the first quarter of 2013 in the foreign currency exchange transaction losses, net line in the condensed consolidated statement of operations primarily reflecting the write-down of monetary assets and liabilities.

1. Background and Basis of Presentation

Background

The Nielsen Company B.V. (“Nielsen” or the “Company”), together with its subsidiaries, is a leading global information and measurement company that provides clients with a comprehensive understanding of consumers and consumer behavior. Nielsen is aligned into three reporting segments: what consumers buy (“Buy”), what consumers watch (“Watch”) and Expositions. Nielsen has a presence in approximately 100 countries, with its headquarters located in Diemen, the Netherlands and New York, USA. Nielsen’s parent company, Valcon Acquisition B.V. (“Valcon”), is a wholly-owned subsidiary of Nielsen Holdings N.V. (“Holdings”).

Basis of Presentation

The accompanying condensed consolidated financial statements are unaudited but, in the opinion of management, contain all the adjustments (consisting of those of a normal recurring nature) considered necessary to present fairly the Company’s financial position and the results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the U.S. (“U.S. GAAP”) applicable to interim periods. For a more complete discussion of significant accounting policies, commitments and contingencies and certain other information, refer to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. All amounts are presented in U.S. Dollars (“$”), except for share data or where expressly stated as being in other currencies, e.g., Euros (“€”). The condensed consolidated financial statements include the accounts of Nielsen and all subsidiaries and other controlled entities. The Company has evaluated events occurring subsequent to March 31, 2013 for potential recognition or disclosure in the condensed consolidated financial statements and concluded there were no subsequent events that required recognition or disclosure.

Devaluation of Venezuelan Currency

Nielsen has operations in both the Buy and Watch segments in Venezuela and the functional currency for these operations was the Venezuelan bolivares fuertes. Venezuela’s currency was considered hyperinflationary as of January 1, 2010 and further, in January 2010, Venezuela’s currency was devalued and a new currency exchange rate system was announced. In 2010, Nielsen evaluated the new exchange rate system and concluded that the local currency transactions will be denominated in U.S. dollars effective as of January 1, 2010 and until Venezuela’s currency is deemed to be non-hyperinflationary.

In February 2013, the Venezuelan government devalued its currency by 32%. The official exchange rate moved from 4.30 to 6.30 and the regulated System of Transactions with Securities in Foreign Currency market was suspended. As a result of this change Nielsen recorded a charge of $12 million during the first quarter of 2013 in the foreign currency exchange transaction losses, net line in the condensed consolidated statement of operations primarily reflecting the write-down of monetary assets and liabilities.