Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 678	$ 861	$ 3,028	$ 2,527
Other comprehensive income:
Foreign currency translation adjustments	(255)	(7)	(371)	6
Income tax effect	(15)	(6)	(42)	(4)
Foreign currency translation adjustment, net of income tax effect	(270)	(13)	(413)	2
Pension and other postretirement benefit plans	4	5	5	25
Income tax effect	(1)	(1)	(1)	(5)
Pension and other postretirement benefit plans, net of income tax effect	3	4	4	20
Unrealized gain (loss) on cash flow hedges	54	31	283	(183)
Income tax effect	(14)	(8)	(71)	48
Unrealized gain on investment and forward exchange contracts, net of income tax effect	40	23	212	(135)
Comprehensive income	451	875	2,831	2,414
Less: comprehensive income attributable to nonredeemable noncontrolling interests	(6)	(6)	(18)	(17)
Less: comprehensive income attributable to redeemable noncontrolling interests	(64)	(58)	(195)	(161)
Comprehensive income attributable to S&P Global Inc.	$ 381	$ 811	$ 2,618	$ 2,236