CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Revenue	$ 903	$ 821	$ 1,735	$ 2,036
Costs and Expenses:
Research and Development	21	23	42	56
Selling, General and Administrative	188	223	376	471
Impairments and Other Charges (Credits), Net	(8)	406	(8)	1,223
Restructuring Charges	0	57	0	83
Total Costs and Expenses	878	1,318	1,723	3,355
Operating Income (Loss)	25	(497)	12	(1,319)
Nonoperating Income (Expense) [Abstract]
Interest Expense	(72)	(59)	(142)	(117)
Reorganization Items	0	0	0	(9)
Other Expense, Net	(11)	(11)	(15)	(36)
Loss Before Income Taxes	(58)	(567)	(145)	(1,481)
Income Tax Provision	(15)	(12)	(38)	(56)
Net Loss	(73)	(579)	(183)	(1,537)
Net Income Attributable to Noncontrolling Interests	5	2	11	10
Net Loss Attributable to Weatherford	$ (78)	$ (581)	$ (194)	$ (1,547)
Earnings Per Share, Basic and Diluted [Abstract]
Loss Per Share, Basic & Diluted (in dollars per share)	$ (1.11)	$ (8.30)	$ (2.77)	$ (22.10)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted Average Shares Outstanding, Basic and Diluted (in shares)		70	70	70
Products
Revenues:
Revenue	$ 315	$ 309	$ 624	$ 759
Costs and Expenses:
Cost of Goods and Services Sold	285	253	565	645
Services
Revenues:
Revenue	588	512	1,111	1,277
Costs and Expenses:
Cost of Goods and Services Sold	$ 392	$ 356	$ 748	$ 877