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Other Financial Information- Other Current Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid expenses $ 48 $ 46
Contract acquisition costs 35 38
Contract fulfillment costs 28 30
Other 33 6
Total other current assets $ 144 $ 120