Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Fair Value, Assets And Liabilities Measured On Recurring Basis

The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1 refers to fair values determined based on quoted prices in active markets for identical assets. Level 2 refers to fair values estimated using significant other observable inputs and Level 3 includes fair values estimated using significant unobservable inputs. The following table presents our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy.

	March 31, 2020								December 31, 2019
	Total			Level 1		Level 2			Total			Level 1		Level 2
Assets
Money market funds		$3,658			$3,658					$2,562			$2,562
Available-for-sale debt investments:
Commercial paper	67						$67		108						$108
Corporate notes	159					159			242					242
U.S. government agencies									55			55
Other equity investments	35			35					33			33
Derivatives	2					2			14					14
Total assets		$3,921			$3,693		$228			$3,014			$2,650		$364
Liabilities
Derivatives		($441	)				($441	)		($118	)				($118	)
Total liabilities		($441	)				($441	)		($118	)				($118	)

Fair Value, Assets Measured On Nonrecurring Basis Using Unobservable Inputs

have been measured at fair value on a nonrecurring basis using significant unobservable inputs (Level 3). These assets were primarily valued using an income approach based on the discounted cash flows associated with the underlying assets. The following table presents the nonrecurring losses recognized for the three months ended March 31 due to long-lived asset impairment and the fair value and asset classification of the related assets as of the impairment date:

	2020					2019
	Fair Value		Total Losses			Fair Value		Total Losses
Investments		$52		($21	)		$90		($33	)
Property, plant and equipment	36		(5		)	43		(1		)
Total		$88		($26	)		$133		($34	)

Fair Values And Related Carrying Values Of Financial Instruments

The fair values and related carrying values of financial instruments that are not required to be remeasured at fair value on the Condensed Consolidated Statements of Financial Position were as follows:

	March 31, 2020
	Carrying Amount			Total Fair Value			Level 1	Level 2			Level 3
Assets
Notes receivable, net		$452			$428				$428
Liabilities
Debt, excluding commercial paper and capital lease obligations	(34,010		)	(32,796		)		(32,759		)		($37	)

	December 31, 2019
	Carrying Amount			Total Fair Value			Level 1	Level 2			Level 3
Assets
Notes receivable, net		$443			$444				$444
Liabilities
Debt, excluding capital lease obligations and commercial paper	(20,964		)	(23,119		)		(23,081		)		($38	)