Debt - Additional Information (Details)			9 Months Ended
	Aug. 21, 2023 USD ($)	Aug. 03, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Revolving credit facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 1,500,000,000
Receivables facility			375,000,000
Proceeds from lines of credit			150,000,000
Line of credit facility, remaining borrowing capacity			1,100,000,000
Letter of Credit
Debt Instrument [Line Items]
Receivables facility			21,000,000
Senior notes
Debt Instrument [Line Items]
Expected interest rate adjustment		$ 15,000,000
Interest rate adjustment, annualized amount			8,000,000
Securitization Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			375,000,000
Receivables facility			0	$ 35,000,000
Moody's Corporation | Senior notes
Debt Instrument [Line Items]
Expected interest rate adjustment	$ 8,000,000
Interest rate adjustment, annualized amount			$ 2,000,000
S&P Global Inc. | Senior notes
Debt Instrument [Line Items]
Senior notes subject to interest rate adjustment	$ 3,100,000,000	$ 3,100,000,000
Interest rate adjustment	0.0025	0.0050