v3.26.3
Short-term and Long-term Investments, Restricted Deposits - Schedule of Contractual Maturities of Short-Term and Long-Term Investments and Restricted Deposits (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Investments    
Amortized Cost    
One year or less $ 2,681 $ 2,201
One year through five years 6,158 7,266
Five years through ten years 4,052 4,198
Greater than ten years 133 160
Asset-backed securities 4,065 4,575
Amortized Cost 17,089 18,400
Fair Value    
One year or less 2,663 2,190
One year through five years 5,940 7,219
Five years through ten years 3,859 4,252
Greater than ten years 126 157
Asset-backed securities 3,861 4,516
Fair Value 16,449 18,334
Restricted Deposits    
Amortized Cost    
One year or less 442 464
One year through five years 686 574
Five years through ten years 349 334
Greater than ten years 36 43
Asset-backed securities 0 0
Amortized Cost 1,513 1,415
Fair Value    
One year or less 440 464
One year through five years 664 566
Five years through ten years 331 339
Greater than ten years 35 43
Asset-backed securities 0 0
Fair Value $ 1,470 $ 1,412