v3.26.3
Debt (Interest Expense) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Interest Expense        
Amortization     $ 29 $ 36
(Gain) loss on adjustment to bifurcated compound exchange feature     41 (51)
Total $ 134 $ 154 390 382
Convertible debt instruments        
Interest Expense        
Contractual interest 3 3 9 14
Amortization 4 4 14 15
(Gain) loss on adjustment to bifurcated compound exchange feature 22 14 41 (51)
Total $ 29 $ 21 $ 64 $ (22)