Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 115	$ 576
Other comprehensive income, net of tax
Foreign currency translation adjustments	(11)	228
Changes in the fair value of cash flow hedges	13	5
Net unrealized pension and other postretirement benefits, net of tax	3	144
Total other comprehensive income	5	377
Total comprehensive income	120	953
Less: comprehensive income attributable to noncontrolling interests	11	1
Total comprehensive income attributable to Nielsen shareholders	$ 109	$ 952