Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,171	$ 1,068
Other comprehensive income:
Foreign currency translation adjustments	33	(71)
Income tax effect	19	(8)
Foreign currency translation adjustment, net of income tax effect	52	(79)
Pension and other postretirement benefit plans	1	1
Income tax effect	0	0
Pension and other postretirement benefit plans, net of income tax effect	1	1
Unrealized gain on cash flow hedges	5	21
Income tax effect	(1)	(5)
Unrealized gain on cash flow hedges, net of income tax effect	4	16
Comprehensive income	1,228	1,006
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(4)	(7)
Less: comprehensive income attributable to redeemable noncontrolling interests	(77)	(70)
Comprehensive income attributable to S&P Global Inc.	$ 1,147	$ 929