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Nature of Operations and Basis of Presentation - Narrative (Details)
$ in Millions
3 Months Ended
Dec. 31, 2021
USD ($)
segment
Mar. 31, 2022
USD ($)
segment
Feb. 28, 2022
Business Acquisition [Line Items]      
Number of reportable segments | segment 4 6  
Restricted cash $ 8 $ 2  
Contract asset 9 66  
Unearned revenue   835  
Revenue expected to be recognized as of period end   4,100  
Capitalized contract costs $ 137 $ 124  
Amortization period of capitalized contract cost   5 years  
Corporate Joint Venture | OSTTRA      
Business Acquisition [Line Items]      
Investment in joint venture   50.00%  
Noncontrolling interest ownership by noncontrolling owners (as a percent)   50.00%  
IHS Markit      
Business Acquisition [Line Items]      
Percentage of voting interests acquired (as a percent)     100.00%