Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 2,389	$ 2,016
Expenses:
Operating-related expenses	749	527
Selling and general expenses	958	360
Depreciation	26	19
Amortization of intangibles	111	31
Total expenses	1,844	937
Gain on dispositions	(1,344)	(2)
Equity in Income on Unconsolidated Subsidiaries	(3)	0
Operating profit	1,892	1,081
Other income, net	(49)	(7)
Interest expense, net	57	32
Loss on extinguishment of debt, net	17	0
Income before taxes on income	1,867	1,056
Provision for taxes on income	568	248
Net income	1,299	808
Less: net income attributable to noncontrolling interests	(64)	(53)
Net income attributable to S&P Global Inc.	$ 1,235	$ 755
Net income:
Basic (USD per share)	$ 4.49	$ 3.14
Diluted (USD per share)	$ 4.47	$ 3.12
Weighted-average number of common shares outstanding:
Basic (shares)	275.2	240.6
Diluted (shares)	276.3	241.6
Actual shares outstanding at period end (shares)	339.9	240.9