Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 113	$ 78	$ 228	$ 654
Other comprehensive (loss)/income, net of tax
Foreign currency translation adjustments	(44)	(28)	(55)	200
Changes in the fair value of cash flow hedges	7	4	20	9
Net unrealized pension and other post-retirement benefits, net of tax	3	2	6	146
Total other comprehensive (loss)/income	(34)	(22)	(29)	355
Total comprehensive income	79	56	199	1,009
Less: comprehensive (loss)/income attributable to noncontrolling interests	(1)	4	9	5
Total comprehensive income attributable to Nielsen shareholders	$ 80	$ 52	$ 190	$ 1,004