Acquisitions and Divestitures - Schedule of Components of Assets and Liabilities Held for Sale (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Pre-tax gain (loss) on sale	$ 50	$ 1,344
Sale \| LCD
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Pre-tax gain (loss) on sale	50
Sale \| CUSIP Global Services
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Pre-tax gain (loss) on sale		1,344
Held for sale \| CGS and LCD
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Accounts Receivable, net	91		$ 88
Goodwill	437		437
Other intangible assets, net	696		697
Other assets	89		76
Assets of a business held for sale	1,313		1,298
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Accounts payable and accrued expenses	55		59
Deferred tax liability	26		27
Unearned revenue	171		148
Liabilities of a business held for sale	252		$ 234
Held for sale or disposed
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Operating profit	$ 14	$ 35

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