Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Charges

The following table presents restructuring charges for the Successor Periods and the 2019 Predecessor Period.

	Successor						Predecessor
					Period From		Period From
	Year		Year		12/14/2019		01/01/2019
	Ended		Ended		through		through
(Dollars in millions)	12/31/2021		12/31/2020		12/31/2019		12/13/2019
Severance Charges	$	—	$	132	$	—	$	53
Facility Exit Charges	—		10		—		99
Inventory Charges	—		15		—		24
Property, Plant and Equipment	—		40		—		13
Right of Use and Other Assets	—		9		—		—
Total Restructuring Charges	$	—	$	206	$	—	$	189

The following table presents total restructuring charges by reportable segment and corporate and other for the Successor and Predecessor Periods.

	Successor						Predecessor
					Period From		Period From
	Year		Year		12/14/2019		01/01/2019
	Ended		Ended		through		through
(Dollars in millions)	12/31/2021		12/31/2020		12/31/2019		12/13/2019
Drilling and Evaluation	$	—	$	35	$	—	$	29
Well Construction and Completions	—		60		—		47
Production and Intervention	—		52		—		54
Corporate and Other	—		59		—		59
Total Restructuring Charges	$	—	$	206	$	—	$	189

Schedule of Restructuring Reserve by Type of Cost

The following table presents total restructuring accrual activity for the periods presented. Restructuring charges in the table below exclude restructuring related asset charges.

(Dollars in millions)	Accrued Balance at Beginning of Period		Charges		Cash Payments		Other		Accrued Balance at End of Period
2021 Successor Period	$	53	$	—	$	(30)	$	(6)	$	17
2020 Successor Period	$	66	$	142	$	(137)	$	(18)	$	53
2019 Successor Period	$	66	$	—	$	—	$	—	$	66
2019 Predecessor Period	$	59	$	152	$	(120)	$	(25)	$	66