Financial Instruments - Contractual Maturities (Details) $ in Millions	Jun. 30, 2022 USD ($)
Amortized Cost
Due within one year	$ 29,370
Due after one year through five years	14,776
Due after five years through ten years	796
Due after ten years	2,167
Amortized cost	47,109
Estimated Fair Value
Due within one year	29,344
Due after one year through five years	13,967
Due after five years through ten years	760
Due after ten years	2,060
Estimated fair value	$ 46,131