Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,893	$ 3,522	$ 3,263
Other comprehensive income:
Foreign currency translation adjustments	70	(224)	11
Income tax effect	25	(22)	(24)
Foreign currency translation adjustment, net of income tax effect	95	(246)	(13)
Pension and other postretirement benefit plans	(18)	(60)	33
Income tax effect	5	16	(10)
Pension and other postretirement benefit plans, net of income tax effect	(13)	(44)	23
Unrealized gain (loss) on cash flow hedges	54	325	(282)
Income tax effect	(13)	(80)	68
Unrealized loss on investment and forward exchange contracts, net of income tax effect	41	245	(214)
Comprehensive income	3,016	3,477	3,059
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(26)	(25)	(24)
Less: comprehensive income attributable to redeemable noncontrolling interests	(241)	(249)	(215)
Comprehensive income attributable to S&P Global Inc.	$ 2,749	$ 3,203	$ 2,820