Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 4,167	$ 2,893	$ 3,522
Other comprehensive income:
Foreign currency translation adjustments	(104)	70	(224)
Income tax effect	(18)	25	(22)
Foreign currency translation adjustment, net of income tax effect	(122)	95	(246)
Pension and other postretirement benefit plans	(12)	(18)	(60)
Income tax effect	2	5	16
Pension and other postretirement benefit plans, net of income tax effect	(10)	(13)	(44)
Unrealized gain on cash flow hedges	15	54	325
Income tax effect	(3)	(13)	(80)
Unrealized loss on investment and forward exchange contracts, net of income tax effect	12	41	245
Comprehensive income	4,047	3,016	3,477
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(30)	(26)	(25)
Less: comprehensive income attributable to redeemable noncontrolling interests	(285)	(241)	(249)
Comprehensive income attributable to S&P Global Inc.	$ 3,732	$ 2,749	$ 3,203