Held-to-Maturity Investments (Tables)

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Held-to-Maturity

The following table summarizes the Company's held-to-maturity investments at September 30, 2022 (amount in millions):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized losses		Estimated Fair Value (Level 1)
U.S. treasuries and government agency securities	$	2,945	$	—	$	—	$	2,945