Deferred Revenue (Estimated Deferred Revenue) (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Fiscal Year Ended [Abstract]
2026	$ 755
2027	201
2028	31
2029	19
2030	9
2031+	5
Total	1,020	$ 873
Initial Listings
Fiscal Year Ended [Abstract]
2026	22
2027	33
2028	21
2029	13
2030	9
2031+	5
Total	103	96
Annual Listings
Fiscal Year Ended [Abstract]
2026	200
2027	0
2028	0
2029	0
2030	0
2031+	0
Total	200	3
Workflow & Insights
Fiscal Year Ended [Abstract]
2026	156
2027	52
2028	0
2029	0
2030	0
2031+	0
Total	208	199
Other
Fiscal Year Ended [Abstract]
2026	11
2027	8
2028	5
2029	3
2030	0
2031+	0
Total	27	24
Financial Crime Management Technology
Fiscal Year Ended [Abstract]
2026	143
2027	46
2028	2
2029	1
2030	0
2031+	0
Total	192	189
Regulatory Technology
Fiscal Year Ended [Abstract]
2026	110
2027	31
2028	0
2029	0
2030	0
2031+	0
Total	141	166
Capital Markets Technology
Fiscal Year Ended [Abstract]
2026	113
2027	31
2028	3
2029	2
2030	0
2031+	0
Total	$ 149	$ 196

Contract With Customer, Liability, Expected To Be Recognized After Year Four

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Contract With Customer, Liability, Expected To Be Recognized In Year Four

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Contract With Customer, Liability, Expected To Be Recognized In Year One

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Contract With Customer, Liability, Expected To Be Recognized In Year Three

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Contract With Customer, Liability, Expected To Be Recognized In Year Two

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Contract With Customer, Liability, Expected To Be Recognized, Remainder Of Fiscal Year

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
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