Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 14,208	$ 12,497	$ 11,181
Expenses:
Operating-related expenses	4,391	4,141	3,753
Selling and general expenses	3,166	3,159	3,396
Depreciation	96	101	108
Amortization of intangibles	1,077	1,042	905
Total expenses	8,730	8,443	8,162
(Gain) loss on dispositions, net	(59)	70	(1,898)
Equity in income on unconsolidated subsidiaries	(43)	(36)	(27)
Operating profit	5,580	4,020	4,944
Other (income) expense, net	(25)	15	(70)
Interest expense, net	297	334	304
Loss on extinguishment of debt	0	0	8
Income before taxes on income	5,308	3,671	4,702
Provision for taxes on income	1,141	778	1,180
Net income	4,167	2,893	3,522
Less: net income attributable to noncontrolling interests	(315)	(267)	(274)
Net income attributable to S&P Global Inc.	$ 3,852	$ 2,626	$ 3,248
Net income:
Basic (in USD)	$ 12.36	$ 8.25	$ 10.25
Diluted (in USD)	$ 12.35	$ 8.23	$ 10.20
Weighted-average number of common shares outstanding:
Basic (in shares)	311.6	318.4	316.9
Diluted (in shares)	311.9	318.9	318.5
Actual shares outstanding at year end (shares)	307.8	314.1	321.9