Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 3,522	$ 3,263	$ 2,534
Other comprehensive income:
Foreign currency translation adjustments	(224)	11	(24)
Income tax effect	(22)	(24)	22
Foreign currency translation adjustment, net of income tax effect	(246)	(13)	(2)
Pension and other postretirement benefit plans	(60)	33	(31)
Income tax effect	16	(10)	8
Pension and other postretirement benefit plans, net of income tax effect	(44)	23	(23)
Unrealized gain (loss) on cash flow hedges	325	(282)	17
Income tax effect	(80)	68	(5)
Unrealized loss on investment and forward exchange contracts, net of income tax effect	245	(214)	12
Comprehensive income	3,477	3,059	2,521
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(25)	(24)	(14)
Less: comprehensive income attributable to redeemable noncontrolling interests	(249)	(215)	(181)
Comprehensive income attributable to S&P Global Inc.	$ 3,203	$ 2,820	$ 2,326