Financial Instruments Contractual Maturities (Details) $ in Millions	Mar. 31, 2022 USD ($)	[1]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost, Within One Year	$ 60
Amortized Cost, One Through Five Years	53
Fair Value, Within One Year	60
Fair Value, one to five years	$ 53

[1] The company's debt securities securities at March 31, 2022 consists of foreign government bonds, which are classified as held-to-maturity