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

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Investments

Details of our investments are as follows:

			June 30, 2021																		December 31, 2020
			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			$	2,039					$	—					$	—					$	886					$	—					$	—
Corporate obligations			460						979						—						256						407						—
U.S. government agency and Treasury securities			350						2,762						—						1,340						3,054						—
Mutual funds			—						—						15						—						—						18
Total			2,849						3,741						15						2,482						3,461						18
Other measurement basis:
Equity-method investments			—						—						52						—						—						27
Non-marketable equity investments			—						—						4						—						—						4
Cash on hand			800						—						—						625						—						—
Total			$	3,649					$	3,741					$	71					$	3,107					$	3,461					$	49

Aggregate Maturities of Available-for-sale Debt Investments

The following table presents the aggregate maturities of our available-for-sale debt investments as of June 30, 2021:

												Fair Value
One year or less												$	4,451
One to two years												100

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, 2021																		December 31, 2020
			Level 1						Level 2						Total						Level 1						Level 2						Total
Assets:
Money market funds			$	2,039					$	—					$	2,039					$	886					$	—					$	886
Corporate obligations			—						1,439						1,439						—						663						663
U.S. government agency and Treasury securities			2,711						401						3,112						4,394						—						4,394
Mutual funds			15						—						15						18						—						18
Total assets			$	4,765					$	1,840					$	6,605					$	5,298					$	663					$	5,961
Liabilities:
Deferred compensation			$	361					$	—					$	361					$	350					$	—					$	350
Total liabilities			$	361					$	—					$	361					$	350					$	—					$	350

X

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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