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Derivative Liabilities - Schedule of Derivative Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total derivative liabilities	$ 36	$ 19
Common stock warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities	6	4
Public warrants | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities	3	2
Private placement warrants | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities	3	2
Earnout share liabilities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative liabilities	$ 30	$ 15

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