Other Financial Information- Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 57	$ 48
Contract acquisition costs	31	34
Contract fulfillment costs	28	28
Assets held for sale	29	29
Other	6	5
Total other current assets	$ 151	$ 144