Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,265	$ 1,047	$ 3,596	$ 3,200
Other comprehensive income:
Foreign currency translation adjustments	14	98	(5)	20
Income tax effect	(8)	26	95	15
Foreign currency translation adjustment, net of income tax effect	6	124	90	35
Pension and other postretirement benefit plans	1	1	(1)	(4)
Income tax effect	0	0	1	2
Pension and other postretirement benefit plans, net of income tax effect	1	1	0	(2)
Unrealized gain on cash flow hedges	(12)	0	(7)	19
Income tax effect	2	0	2	(3)
Unrealized gain on cash flow hedges, net of income tax effect	(10)	0	(5)	16
Comprehensive income	1,262	1,172	3,681	3,249
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(7)	(7)	(24)	(20)
Less: comprehensive income attributable to redeemable noncontrolling interests	(82)	(69)	(235)	(208)
Comprehensive income attributable to S&P Global Inc.	$ 1,173	$ 1,096	$ 3,422	$ 3,021