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Revenues, Unbilled Revenue and Deferred Revenue (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Contracts with Customers, Assets and Liabilities [Abstract]    
Unbilled revenue $ 12 $ 6
Deferred revenue 474 $ 501
Prepaid and other current assets [Member]    
Contracts with Customers, Assets and Liabilities [Abstract]    
Unbilled revenue (current amount) 12  
Other current liabilities [Member]    
Contracts with Customers, Assets and Liabilities [Abstract]    
Deferred revenue (current amount) 159  
Other long-term liabilities [Member]    
Contracts with Customers, Assets and Liabilities [Abstract]    
Deferred revenue (noncurrent) $ 315