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Equity - Stock Option - Narrative (Details)
$ in Millions
9 Months Ended
Sep. 30, 2025
USD ($)
Share-based compensation  
Cash received from exercise of stock options $ 4
Stock options  
Share-based compensation  
Unrecognized compensation cost $ 2
Weighted-average period for amortization of unrecognized compensation cost 1 year 10 months 24 days