Consolidated Statements of Equity - USD ($) $ in Millions		Total	Total SPGI Equity	Common Stock $1 par	Additional Paid-in Capital	Retained Income	Accumulated Other Comprehensive Loss	Less: Treasury Stock	Noncontrolling Interests
Beginning Balance at Dec. 31, 2021		$ 2,107	$ 2,032	$ 294	$ 1,031	$ 15,017	$ (841)	$ (13,469)	$ 75
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	2,249	2,237			2,207	30		12
Dividends (Dividend declared per common share)		(482)	(472)			(472)			(10)
Acquisition of IHS Markit		43,536	43,536	121	43,415
Share repurchases		(8,503)	(8,503)		(1,275)			7,228
Employee stock plans		57	57		71			14
Change in redemption value of redeemable noncontrolling interest		547	547			547
Other		(5)	(1)			(1)			(4)
Ending Balance at Jun. 30, 2022		39,506	39,433	415	43,242	17,298	(811)	(20,711)	73
Beginning Balance at Mar. 31, 2022		39,781	39,702	415	43,445	16,065	(782)	(19,441)	79
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	950	943			972	(29)		7
Dividends (Dividend declared per common share)		(296)	(286)			(286)			(10)
Share repurchases		(1,500)	(1,500)		(225)			1,275
Employee stock plans		27	27		22			(5)
Change in redemption value of redeemable noncontrolling interest		548	548			548
Other		(4)	(1)						(3)
Ending Balance at Jun. 30, 2022		39,506	39,433	415	43,242	17,298	(811)	(20,711)	73
Beginning Balance at Dec. 31, 2022		36,477	36,388	415	44,422	17,784	(886)	(25,347)	89
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	1,389	1,378			1,305	73		11
Dividends (Dividend declared per common share)		(587)	(578)			(578)			(9)
Share repurchases		(1,501)	(1,501)					1,501
Employee stock plans		15	15		(127)			(142)
Change in redemption value of redeemable noncontrolling interest		(237)	(237)			(237)
Adjustment to noncontrolling interest		(2)	(2)		(2)
Other		5	5			5
Ending Balance at Jun. 30, 2023		35,559	35,468	415	44,293	18,279	(813)	(26,706)	91
Beginning Balance at Mar. 31, 2023		36,370	36,275	415	44,329	18,171	(861)	(25,779)	95
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	565	559			511	48		6
Dividends (Dividend declared per common share)		(299)	(290)			(290)			(9)
Share repurchases		(1,001)	(1,001)		(50)			951
Employee stock plans		40	40		16			(24)
Change in redemption value of redeemable noncontrolling interest		(117)	(117)			(117)
Adjustment to noncontrolling interest		(2)	(2)		(2)
Other		3	4			4			(1)
Ending Balance at Jun. 30, 2023		$ 35,559	$ 35,468	$ 415	$ 44,293	$ 18,279	$ (813)	$ (26,706)	$ 91

[1] Excludes comprehensive income of $58 million and $72 million for the three months ended June 30, 2023 and 2022, respectively, and $119 million and $131 million for the six months ended June 30, 2023 and 2022, respectively, attributable to our redeemable noncontrolling interest.