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, 2023		$ 34,300	$ 34,200	$ 415	$ 44,231	$ 18,728	$ (763)	$ (28,411)	$ 100
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	936	929			991	(62)		7
Dividends (Dividend declared per common share)		(286)	(286)			(286)
Share repurchases, including excise tax		(505)	(505)		120			625
Employee stock plans		(11)	(11)		(56)			(45)
Change in redemption value of redeemable noncontrolling interests		(1)	(1)			(1)
Other		(9)	1			1			(10)
Ending Balance at Mar. 31, 2024		34,424	34,327	415	44,295	19,433	(825)	(28,991)	97
Beginning Balance at Dec. 31, 2024		33,256	33,159	415	44,321	20,977	(883)	(31,671)	97
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	[1]	1,151	1,147			1,090	57		4
Dividends (Dividend declared per common share)		(295)	(295)			(295)
Share repurchases, including excise tax		(657)	(657)		65			722
Employee stock plans		(10)	(10)		(27)			(17)
Change in redemption value of redeemable noncontrolling interests		27	27			27
Other		1							1
Ending Balance at Mar. 31, 2025		$ 33,473	$ 33,371	$ 415	$ 44,359	$ 21,799	$ (826)	$ (32,376)	$ 102

[1] 1Excludes comprehensive income of $77 million and $70 million for the three months ended March 31, 2025 and 2024, respectively, attributable to our redeemable noncontrolling interests.