Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,160	$ 1,085	$ 2,331	$ 2,154
Other comprehensive income:
Foreign currency translation adjustments	(51)	(6)	(19)	(78)
Income tax effect	84	(4)	103	(11)
Foreign currency translation adjustment, net of income tax effect	33	(10)	84	(89)
Pension and other postretirement benefit plans	(3)	(5)	(1)	(5)
Income tax effect	1	2	1	2
Pension and other postretirement benefit plans, net of income tax effect	(2)	(3)	0	(3)
Unrealized gain on cash flow hedges	0	0	4	20
Income tax effect	0	0	0	(4)
Unrealized gain on cash flow hedges, net of income tax effect	0	0	4	16
Comprehensive income	1,191	1,072	2,419	2,078
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(12)	(6)	(17)	(14)
Less: comprehensive income attributable to redeemable noncontrolling interests	(76)	(68)	(153)	(138)
Comprehensive income attributable to S&P Global Inc.	$ 1,103	$ 998	$ 2,249	$ 1,926