Commitments and Contingencies	9 Months Ended
Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	11. Commitments and Contingencies Legal Proceedings and Contingencies Nielsen is subject to litigation and other claims in the ordinary course of business, some of which include claims for substantial sums. Accruals have been recorded when the outcome is probable and can be reasonably estimated. While the ultimate results of claims and litigation cannot be determined, the Company does expect that the ultimate disposition of these matters will not have a material adverse effect on its operations or financial condition. However, depending on the amount and the timing, an unfavorable resolution of some or all of these matters could materially affect the Company’s future results of operations or cash flows in a particular period. Subsequent Event Outsourced Services Agreements In October 2017, Nielsen amended and restated in its entirety, its Amended and Restated Master Services Agreement, dated as of October 1, 2007 with Tata America International Corporation and Tata Consultancy Services Limited (jointly, “TCS”) (as amended prior to the Second Amendment and Restatement, the “Prior Agreement”) by entering into a Second Amended and Restated Master Services Agreement (the “Agreement”), dated as of October 1, 2017 and effective as of January 1, 2017 (the “Effective Date”), with TCS. The term of the Agreement has been extended for an additional five years, so as to expire on December 31, 2025, with three one-year renewal options granted to Nielsen. Nielsen has committed to purchase services from TCS from the Effective Date through the remaining term of the Agreement (the “Minimum Commitment”) in the amount of $2.25 billion, including a commitment to purchase at least $320 million in services per year from 2017 through 2020, $186 million in services per year from 2021 through 2024, and $139.5 million in services in 2025 (in each of the foregoing cases, the “Annual Commitment”). In connection with the entry into the Agreement, the parties have agreed to terminate the separate Global Infrastructure Services Agreement between them as of the Effective Date and include the services provided thereunder in one or more Statements of Work (“SOWs”) arising under the Agreement. TCS’s charges under such SOWs will continue to be credited against the Minimum Commitment and the Annual Commitment. TCS will globally provide Nielsen with professional services relating to information technology (including application development and maintenance), business process outsourcing, client service knowledge process outsourcing, management sciences, analytics, and financial planning. As Nielsen orders specific services under the Agreement, the parties will execute SOWs describing the specific scope of the services to be performed by TCS. The amount of the Minimum Commitment and the Annual Commitment may be reduced on the occurrence of certain events, some of which also provide Nielsen with the right to terminate the Agreement or SOWs, as applicable.

11. Commitments and Contingencies

Legal Proceedings and Contingencies

Nielsen is subject to litigation and other claims in the ordinary course of business, some of which include claims for substantial sums. Accruals have been recorded when the outcome is probable and can be reasonably estimated. While the ultimate results of claims and litigation cannot be determined, the Company does expect that the ultimate disposition of these matters will not have a material adverse effect on its operations or financial condition. However, depending on the amount and the timing, an unfavorable resolution of some or all of these matters could materially affect the Company’s future results of operations or cash flows in a particular period.

Subsequent Event

Outsourced Services Agreements

In October 2017, Nielsen amended and restated in its entirety, its Amended and Restated Master Services Agreement, dated as of October 1, 2007 with Tata America International Corporation and Tata Consultancy Services Limited (jointly, “TCS”) (as amended prior to the Second Amendment and Restatement, the “Prior Agreement”) by entering into a Second Amended and Restated Master Services Agreement (the “Agreement”), dated as of October 1, 2017 and effective as of January 1, 2017 (the “Effective Date”), with TCS. The term of the Agreement has been extended for an additional five years, so as to expire on December 31, 2025, with three one-year renewal options granted to Nielsen. Nielsen has committed to purchase services from TCS from the Effective Date through the remaining term of the Agreement (the “Minimum Commitment”) in the amount of $2.25 billion, including a commitment to purchase at least $320 million in services per year from 2017 through 2020, $186 million in services per year from 2021 through 2024, and $139.5 million in services in 2025 (in each of the foregoing cases, the “Annual Commitment”). In connection with the entry into the Agreement, the parties have agreed to terminate the separate Global Infrastructure Services Agreement between them as of the Effective Date and include the services provided thereunder in one or more Statements of Work (“SOWs”) arising under the Agreement. TCS’s charges under such SOWs will continue to be credited against the Minimum Commitment and the Annual Commitment. TCS will globally provide Nielsen with professional services relating to information technology (including application development and maintenance), business process outsourcing, client service knowledge process outsourcing, management sciences, analytics, and financial planning. As Nielsen orders specific services under the Agreement, the parties will execute SOWs describing the specific scope of the services to be performed by TCS. The amount of the Minimum Commitment and the Annual Commitment may be reduced on the occurrence of certain events, some of which also provide Nielsen with the right to terminate the Agreement or SOWs, as applicable.