Financial Instruments - Contractual Maturities (Details) $ in Millions	Mar. 31, 2022 USD ($)
Amortized Cost
Due within one year	$ 29,151
Due after one year through five years	15,512
Due after five years through ten years	822
Due after ten years	2,380
Amortized cost	47,865
Estimated Fair Value
Due within one year	29,144
Due after one year through five years	14,873
Due after five years through ten years	796
Due after ten years	2,305
Estimated fair value	$ 47,118

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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