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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for award of options		44,095,000
Stock-based compensation expense		$ 48	$ 47	$ 47
Tax benefit related to the stock compensation expense		$ 13	$ 15	$ 17
Weighted-average grant date fair value of the options granted		$ 8.13	$ 7.13	$ 6.63
Aggregate fair value of options vested		$ 21	$ 21	$ 27
Intrinsic value of options exercised		94	$ 94	$ 79
Cash proceeds from exercise of options		$ 82
Aggregate fair value of the replacement awards granted	$ 3
Post merger service
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate fair value of the replacement awards granted	2
Purchase price consideration
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate fair value of the replacement awards granted	$ 1
Time-based stock options \| Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted		1,609,170	2,448,100
Vesting period		4 years	4 years	4 years
Vesting rate		25.00%	25.00%	25.00%
Tranches expiration period		10 years
Stock option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned stock-based compensation related to stock options		$ 18
Unearned stock-based compensation, expected period to recognize		4 years
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned stock-based compensation, expected period to recognize		3 years 4 months 24 days
Unearned stock-based compensation of RSUs		$ 38
Number of Options, Granted		851,088	526,857	955,531
Weighted-Average Exercise Price, Granted		$ 47.29	$ 42.74	$ 34.86
Restricted Stock Units (RSUs) \| Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rate		25.00%	25.00%	25.00%
Restricted Stock Units (RSUs) \| Stock Incentive Plan \| Nielsen Audio
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units granted	95,599
Restricted Stock Units (RSUs) \| Bonus
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rate		50.00%
Unearned stock-based compensation related to stock options		$ 3
Restricted stock units granted		96,282	117,520	171,792
Weighted-average grant date fair value of the options granted		$ 45.28	$ 45.13	$ 32.25
Restricted Stock Units (RSUs) \| Bonus \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned stock-based compensation, expected period to recognize		2 years
Restricted Stock Units (RSUs) \| Bonus \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned stock-based compensation, expected period to recognize		3 years
Performance restricted stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Number of Options, Granted		381,576	333,700	510,280
Weighted-Average Exercise Price, Granted		$ 45.37	$ 50.50	$ 34.02
Share based compensation arrangement required service period, years		3 years
Relative shareholder return, percentage		40.00%
Free cash flow achievement, percentage		60.00%
Maximum payout, percentage		200.00%
Unearned stock-based compensation		$ 15