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Deferred Contract Costs - Schedule of Deferred Contract Cost (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Capitalized Contract Cost |  |
Total Deferred contract costs, net | $ 1,274 | $ 1,241
Contract costs on implementations in progress |  |
Capitalized Contract Cost |  |
Total Deferred contract costs, net | 302 | 381
Contract origination costs on completed implementations, net |  |
Capitalized Contract Cost |  |
Total Deferred contract costs, net | 656 | 602
Contract fulfillment costs on completed implementations, net |  |
Capitalized Contract Cost |  |
Total Deferred contract costs, net | $ 316 | $ 258

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