Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 3,491	$ 3,160
Expenses:
Operating-related expenses	1,120	1,088
Selling and general expenses	705	705
Depreciation	23	25
Amortization of intangibles	264	262
Total expenses	2,112	2,080
Gain on disposition	0	(50)
Equity in income on unconsolidated subsidiaries	(6)	(14)
Operating profit	1,385	1,144
Other (income) expense, net	(9)	11
Interest expense, net	78	85
Income before taxes on income	1,316	1,048
Provision for taxes on income	248	188
Net income	1,068	860
Less: net income attributable to noncontrolling interests	(77)	(65)
Net income attributable to S&P Global Inc.	$ 991	$ 795
Earnings per share attributable to S&P Global Inc. common shareholders:
Basic (USD per share)	$ 3.16	$ 2.47
Diluted (USD per share)	$ 3.16	$ 2.47
Weighted-average number of common shares outstanding:
Basic (shares)	313.6	321.3
Diluted (shares)	314.0	322.1
Actual shares outstanding at period end (shares)	313.1	320.8