Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 860	$ 1,299
Other comprehensive income:
Foreign currency translation adjustments	42	(21)
Income tax effect	3	(5)
Foreign currency translation adjustment, net of income tax effect	45	(26)
Pension and other postretirement benefit plans	1	5
Income tax effect	0	(1)
Pension and other postretirement benefit plans, net of income tax effect	1	4
Unrealized (loss) gain on cash flow hedges	(27)	107
Income tax effect	6	(26)
Unrealized gain on investment and forward exchange contracts, net of income tax effect	(21)	81
Comprehensive income	885	1,358
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(4)	(5)
Less: comprehensive income attributable to redeemable noncontrolling interests	(61)	(59)
Comprehensive income attributable to S&P Global Inc.	$ 820	$ 1,294