Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 11,181	$ 8,297	$ 7,442
Expenses:
Operating-related expenses	3,766	2,195	2,094
Selling and general expenses	3,383	1,714	1,541
Depreciation	108	82	83
Amortization of intangibles	905	96	123
Total expenses	8,162	4,087	3,841
Gain on dispositions	(1,898)	(11)	(16)
Equity in income on unconsolidated subsidiaries	(27)	0	0
Operating profit	4,944	4,221	3,617
Other income, net	(70)	(62)	(31)
Interest expense, net	304	119	141
Loss on extinguishment of debt	8	0	279
Income before taxes on income	4,702	4,164	3,228
Provision for taxes on income	1,180	901	694
Net income	3,522	3,263	2,534
Less: net income attributable to noncontrolling interests	(274)	(239)	(195)
Net income attributable to S&P Global Inc.	$ 3,248	$ 3,024	$ 2,339
Net income:
Basic (USD per share)	$ 10.25	$ 12.56	$ 9.71
Diluted (USD per share)	$ 10.20	$ 12.51	$ 9.66
Weighted-average number of common shares outstanding:
Basic (shares)	316.9	240.8	241.0
Diluted (shares)	318.5	241.8	242.1
Actual shares outstanding at year end (shares)	321.9	241.0	240.6