v3.25.4
Investments - Available-for-Sale Securities by Tenor (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Amortized Cost    
Amortized Cost $ 99,116 $ 80,777
Fair Value    
Fair Value $ 99,244 $ 79,458
Weighted Average Yield 3.81% 3.29%
U.S. government obligations    
Amortized Cost    
Less than 1 year $ 3,723 $ 21,176
1 year to 5 years 70,516 48,564
5 years to 10 years 15,970 6,620
Amortized Cost 90,209 76,360
Fair Value    
Less than 1 year 3,730 21,011
1 year to 5 years 70,872 47,931
5 years to 10 years 15,980 6,468
Fair Value $ 90,582 $ 75,410
Less than 1 year 3.99% 2.62%
1 year to 5 years 3.89% 3.64%
5 years to 10 years 3.86% 3.93%
Weighted Average Yield 3.89% 3.38%
U.S. agency obligations    
Amortized Cost    
5 years to 10 years $ 104  
Greater than 10 years 1,361  
Amortized Cost 1,465  
Fair Value    
5 years to 10 years 104  
Greater than 10 years 1,363  
Fair Value $ 1,467  
5 years to 10 years 4.43%  
Greater than 10 years 5.06%  
Weighted Average Yield 5.02%  
Non-U.S. government obligations    
Amortized Cost    
1 year to 5 years $ 6,579 $ 4,224
5 years to 10 years 863 193
Amortized Cost 7,442 4,417
Fair Value    
1 year to 5 years 6,356 3,893
5 years to 10 years 839 155
Fair Value $ 7,195 $ 4,048
1 year to 5 years 2.36% 1.73%
5 years to 10 years 3.63% 0.72%
Weighted Average Yield 2.51% 1.69%