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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2021
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 December 31, 2021 by segment is as follows:
2021 Restructuring Plan2020 Restructuring Plan
(in millions)Initial Charge RecordedEnding Reserve BalanceInitial Charge RecordedEnding Reserve Balance
Ratings$3 $3 $4 $1 
Market Intelligence3 3 27 4 
Platts— — 10 4 
Indices— — 5 — 
Corporate13 13 19 4 
Total$19 $19 $65 $13