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Debt Investment Maturities (Detail)
$ in Millions
Dec. 31, 2023
USD ($)
Adjusted Cost Basis  
Due in one year or less $ 17,257
Due after one year through five years 46,857
Due after five years through 10 years 8,932
Due after 10 years 1,328
Debt investments, Adjusted Cost Basis 74,374
Estimated Fair Value  
Due in one year or less 17,145
Due after one year through five years 44,848
Due after five years through 10 years 7,976
Due after 10 years 1,220
Total $ 71,189