Valuation of debt and equity investments and certain liabilities (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Investments

Details of our investments are as follows:

	June 30, 2023						December 31, 2022
	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	$	2,367	$	—	$	—	$	1,238	$	—	$	—
Corporate obligations	384		1,761		—		276		1,535		—
U.S. government and agency securities	100		3,957		—		680		4,234		—
Non-U.S. government and agency securities	50		395		—		149		248		—
Mutual funds	—		—		11		—		—		11
Total	2,901		6,113		11		2,343		6,017		11
Other measurement basis:
Equity-method investments	—		—		14		—		—		18
Non-marketable investments	—		—		6		—		—		5
Cash on hand	538		—		—		707		—		—
Total	$	3,439	$	6,113	$	31	$	3,050	$	6,017	$	34

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.

	June 30, 2023						December 31, 2022
	Level 1		Level 2		Total		Level 1		Level 2		Total
Assets:
Money market funds	$	2,367	$	—	$	2,367	$	1,238	$	—	$	1,238
Corporate obligations	—		2,145		2,145		—		1,811		1,811
U.S. government and agency securities	3,957		100		4,057		4,914		—		4,914
Non-U.S. government and agency securities	—		445		445		—		397		397
Mutual funds	11		—		11		11		—		11
Total assets	$	6,335	$	2,690	$	9,025	$	6,163	$	2,208	$	8,371
Liabilities:
Deferred compensation	$	353	$	—	$	353	$	326	$	—	$	326
Total liabilities	$	353	$	—	$	353	$	326	$	—	$	326