Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,047	$ 814	$ 3,200	$ 2,249
Other comprehensive income:
Foreign currency translation adjustments	98	(113)	20	(40)
Income tax effect	26	(6)	15	2
Foreign currency translation adjustment, net of income tax effect	124	(119)	35	(38)
Pension and other postretirement benefit plans	1	0	(4)	(12)
Income tax effect	0	0	2	4
Pension and other postretirement benefit plans, net of income tax effect	1	0	(2)	(8)
Unrealized gain on cash flow hedges	0	115	19	115
Income tax effect	0	(29)	(3)	(29)
Unrealized gain on cash flow hedges, net of income tax effect	0	86	16	86
Comprehensive income	1,172	781	3,249	2,289
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(7)	(7)	(20)	(19)
Less: comprehensive income attributable to redeemable noncontrolling interests	(69)	(65)	(208)	(183)
Comprehensive income attributable to S&P Global Inc.	$ 1,096	$ 709	$ 3,021	$ 2,087