Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 12,497	$ 11,181	$ 8,297
Expenses:
Operating-related expenses	4,141	3,753	2,180
Selling and general expenses	3,159	3,396	1,729
Depreciation	101	108	82
Amortization of intangibles	1,042	905	96
Total expenses	8,443	8,162	4,087
Loss (gain) on dispositions	70	(1,898)	(11)
Equity in income on unconsolidated subsidiaries	(36)	(27)	0
Operating profit	4,020	4,944	4,221
Other expense (income), net	15	(70)	(62)
Interest expense, net	334	304	119
Loss on extinguishment of debt	0	8	0
Income before taxes on income	3,671	4,702	4,164
Provision for taxes on income	778	1,180	901
Net income	2,893	3,522	3,263
Less: net income attributable to noncontrolling interests	(267)	(274)	(239)
Net income attributable to S&P Global Inc.	$ 2,626	$ 3,248	$ 3,024
Net income:
Basic (USD per share)	$ 8.25	$ 10.25	$ 12.56
Diluted (USD per share)	$ 8.23	$ 10.20	$ 12.51
Weighted-average number of common shares outstanding:
Basic (shares)	318.4	316.9	240.8
Diluted (shares)	318.9	318.5	241.8
Actual shares outstanding at year end (shares)	314.1	321.9	241.0