Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Summary of Valuation Allowance [Table Text Block]

Col. A	Col. B		Col. C				Col. D			Col. E
			Additions
			(1)		(2)
	Balance at		Charged to		Charged to					Balance at
	Beginning		Costs and		Other		Deductions			End of
Description	of Period		Expenses		Accounts		(a)			Period
Year Ended December 31, 2020:
Allowance for doubtful accounts	$	11	$	2	$	-	$	(3	)	$	10
Valuation allowance for deferred tax assets	$	14	$	1	$	-	$	-		$	15
Year Ended December 31, 2019:
Allowance for doubtful accounts	$	5	$	11	$	-	$	(5	)	$	11
Valuation allowance for deferred tax assets	$	-	$	14	$	-	$	-		$	14
Year Ended December 31, 2018:
Allowance for doubtful accounts	$	5	$	2	$	-	$	(2	)	$	5
Valuation allowance for deferred tax assets	$	-	$	-	$	-	$	-		$	-