Valuation of Debt and Equity Investments and Certain Liabilities (Tables)

12 Months Ended

Dec. 31, 2024

Details of our investments are as follows:


	December 31, 2024						December 31, 2023
	Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments		Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments
Measured at fair value:
Money market funds	$	762	$	—	$	—	$	1,068	$	—	$	—
Corporate obligations	694		796		—		349		1,605		—
U.S. government and agency securities	752		3,485		—		696		3,808		—
Non-U.S. government and agency securities	249		99		—		50		198		—
Mutual funds	—		—		11		—		—		12
Total	2,457		4,380		11		2,163		5,611		12

Other measurement basis:
Equity-method investments	—		—		8		—		—		17
Nonmarketable investments	—		—		4		—		—		5
Total	—		—		12		—		—		22

Cash on hand	743		—		—		801		—		—
Total	$	3,200	$	4,380	$	23	$	2,964	$	5,611	$	34

Aggregate Maturities of Available-for-sale Debt Investments

The following table presents the aggregate maturities of our debt investments as of December 31, 2024:


	Fair Value
One year or less	$	5,348
One to two years	727

Assets and Liabilities Accounted for at Fair Value

The following are our assets and liabilities that were accounted for at fair value on a recurring basis. These tables do not include cash on hand, assets held by our postretirement plans, or assets and liabilities that are measured at historical cost or any basis other than fair value.


	December 31, 2024						December 31, 2023
	Level 1		Level 2		Total		Level 1		Level 2		Total
Assets:
Money market funds	$	762	$	—	$	762	$	1,068	$	—	$	1,068
Corporate obligations	—		1,490		1,490		—		1,954		1,954
U.S. government and agency securities	2,591		1,646		4,237		3,618		886		4,504
Non-U.S. government and agency securities	—		348		348		—		248		248
Mutual funds	11		—		11		12		—		12
Total assets	$	3,364	$	3,484	$	6,848	$	4,698	$	3,088	$	7,786

Liabilities:
Deferred compensation	$	443	$	—	$	443	$	393	$	—	$	393
Total liabilities	$	443	$	—	$	443	$	393	$	—	$	393