Financial Instruments - Contractual Maturities (Details) $ in Millions	Dec. 31, 2024 USD ($)
Amortized Cost
Due within one year	$ 78,065
Due after one year through five years	5,023
Due after five years through ten years	560
Due after ten years	829
Total	84,477
Estimated Fair Value
Due within one year	78,046
Due after one year through five years	4,969
Due after five years through ten years	553
Due after ten years	794
Total	$ 84,362