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Commitments and Contingencies - Narrative (Details)
$ in Millions
3 Months Ended
Feb. 02, 2021
plaintiff
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Loss Contingencies [Line Items]      
Period of lease extension options   15 years  
Option to terminate lease, period   1 year  
Lease impairment   $ 6 $ 5
Amazon Web Services      
Loss Contingencies [Line Items]      
Collaborative arrangement, purchase obligation   $ 1,000  
Collaborative arrangement, contractual period   5 years  
Basis Capital Investment Group, Investment Losses On Collateralized Debt Obligations      
Loss Contingencies [Line Items]      
Number of entities | plaintiff 2    
CME Group      
Loss Contingencies [Line Items]      
Noncontrolling interest ownership by noncontrolling owners percentage   27.00%  
S&P DJ Indices | CME Group      
Loss Contingencies [Line Items]      
Noncontrolling interest ownership by noncontrolling owners percentage   27.00%  
S&P DJ Indices | CME Group      
Loss Contingencies [Line Items]      
Revenues earned under license agreement   $ 44 $ 41
Minimum      
Loss Contingencies [Line Items]      
Remaining lease terms   1 year  
Maximum      
Loss Contingencies [Line Items]      
Remaining lease terms   10 years