Investments (Tables)

3 Months Ended

Mar. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Amortized cost, gross unrealized gains, gross unrealized losses and estimated fair values of available-for-sale investments by type of security

The amortized cost, gross unrealized gains, gross unrealized losses and fair values of interest-bearing securities, which are considered available-for-sale, by type of security were as follows (in millions):


Types of securities as of March 31, 2023	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair values

U.S. Treasury bills	$	—	$	—	$	—	$	—









Money market mutual funds	31,064		—		—		31,064
Other short-term interest-bearing securities	1		—		—		1


Total interest-bearing securities	$	31,065	$	—	$	—	$	31,065


Types of securities as of December 31, 2022	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair values

U.S. Treasury bills	$	1,676	$	—	$	—	$	1,676









Money market mutual funds	2,659		—		—		2,659
Other short-term interest-bearing securities	—		—		—		—
Total interest-bearing securities	$	4,335	$	—	$	—	$	4,335

Fair values of available-for-sale investments by classification in the Consolidated Balance Sheets

The fair values of interest-bearing securities by location in the Condensed Consolidated Balance Sheets were as follows (in millions):


Condensed Consolidated Balance Sheets locations	March 31, 2023		December 31, 2022
Cash and cash equivalents	$	31,064	$	2,659
Marketable securities	1		1,676
Total interest-bearing securities	$	31,065	$	4,335