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Restructuring (Tables)
 9 Months Ended
Sep. 30, 2023
Restructuring and Related Activities [Abstract]  
Schedule of Initial Restructuring Charge Recorded and the Ending Reserve Balance The initial restructuring charge recorded and the ending reserve balance as of September 30, 2023 by segment is as follows:
2023 Restructuring Plan2022 Restructuring Plan
(in millions)Initial Charge RecordedEnding Reserve BalanceInitial Charge RecordedEnding Reserve Balance
Market Intelligence$40 $32 $86 $17 
Ratings8 6 26 5 
Commodity Insights 23 18 45 7 
Mobility 6 5 2 1 
Indices4 3 13 3 
Engineering Solutions— — 2 — 
Corporate 19 12 109 14 
Total $100 $76 $283 $47