Schedule II Nov Inc. Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2020

Valuation And Qualifying Accounts [Abstract]

Schedule II Nov Inc. Valuation and Qualifying Accounts

SCHEDULE II

NOV INC.

VALUATION AND QUALIFYING ACCOUNTS

Years Ended December 31, 2020, 2019 and 2018

(in millions)

	Balance beginning of year		Additions (Deductions) charged to costs and expenses			Charge off's and other			Balance end of year
Allowance for doubtful accounts:
2020	$	132	$	7		$	(39	)	$	100
2019		161		21			(50	)		132
2018		187		17			(43	)		161
Reserve for excess and obsolete inventories:
2020	$	843	$	356		$	(622	)	$	577
2019		644		659			(460	)		843
2018		800		49			(205	)		644
Valuation allowance for deferred tax assets:
2020	$	1,175	$	(82	)	$	-		$	1,093
2019		955		218			2			1,175
2018		1,202		49			(296	)		955
Environmental accruals
2020	$	104	$	13		$	(27	)	$	90
2019		66		57			(19	)		104
2018		38		37			(9	)		66
Warranty reserve:
2020	$	90	$	22		$	(25	)	$	87
2019		105		41			(56	)		90
2018		135		38			(68	)		105