Asset Impairments (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill Identified, by Segment

The Company has approximately $1,493 million of goodwill, by segment as follows (in millions):

	Wellbore Technologies			Completion & Production Solutions			Rig Technologies			Total
Balance at December 31, 2018	$	3,011		$	2,041		$	1,212		$	6,264
Goodwill acquired and adjusted during period		9			40			13			62
Impairment		(2,178	)		(1,019	)		(312	)		(3,509	)
Currency translation adjustments		1			(8	)		(3	)		(10	)
Balance at December 31, 2019		843			1,054			910			2,807
Goodwill acquired and adjusted during period		4			—			—			4
Impairment		(517	)		(580	)		(198	)		(1,295	)
Currency translation adjustments and other		(22	)		(1	)		—			(23	)
Balance at December 31, 2020 (1)	$	308		$	473		$	712		$	1,493

(1) Accumulated goodwill impairment was $7,261 million as of December 31, 2020.

Identified Intangible Assets, by Segment

The Company has approximately $527 million of identified intangible assets, by segment as follows (in millions):

	Wellbore Technologies			Completion & Production Solutions			Rig Technologies			Total
Balance at December 31, 2018	$	1,735		$	1,005		$	280		$	3,020
Additions to intangible assets		6			11			—			17
Impairment		(1,314	)		(690	)		—			(2,004	)
Amortization		(94	)		(56	)		(28	)		(178	)
Currency translation adjustments		(7	)		5			(1	)		(3	)
Balance at December 31, 2019	$	326		$	275		$	251		$	852
Additions to intangible assets		20			—			—			20
Impairment		(78	)		(214	)		—			(292	)
Amortization		(12	)		(9	)		(28	)		(49	)
Currency translation adjustments		(3	)		(5	)		4			(4	)
Balance at December 31, 2020	$	253		$	47		$	227		$	527

Identified Intangible Assets, by Major Classification

Identified intangible assets by major classification consist of the following (in millions):

	Gross		Accumulated Amortization			Net Book Value
December 31, 2019:
Customer relationships	$	598	$	(305	)	$	293
Trademarks		190		(123	)		67
Patents		121		(47	)		74
Indefinite-lived trade names		280		—			280
Other		283		(145	)		138
Total identified intangibles	$	1,472	$	(620	)	$	852
December 31, 2020:
Customer relationships	$	475	$	(300	)	$	175
Trademarks		175		(116	)		59
Patents		115		(53	)		62
Indefinite-lived trade names		196		—			196
Other		94		(59	)		35
Total identified intangibles	$	1,055	$	(528	)	$	527