Financial Instruments - Contractual Maturities (Details) $ in Millions	Dec. 31, 2022 USD ($)
Amortized Cost
Due within one year	$ 46,854
Due after one year through five years	7,622
Due after five years through ten years	602
Due after ten years	1,740
Total	56,818
Estimated Fair Value
Due within one year	46,782
Due after one year through five years	7,047
Due after five years through ten years	565
Due after ten years	1,622
Total	$ 56,016