CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Revenue	$ 832	$ 1,215
Costs and Expenses:
Research and Development	21	33
Selling, General and Administrative	188	248
Impairments and Other Charges	0	817
Restructuring Charges	0	26
Total Costs and Expenses	845	2,037
Operating Loss	(13)	(822)
Nonoperating Income (Expense) [Abstract]
Interest Expense, Net	70	58
Reorganization Items	0	(9)
Other Expense, Net	(4)	(25)
Loss Before Income Taxes	(87)	(914)
Income Tax Provision	(23)	(44)
Net Loss	(110)	(958)
Net Income Attributable to Noncontrolling Interests	6	8
Net Loss Attributable to Weatherford	$ (116)	$ (966)
Earnings Per Share, Basic and Diluted [Abstract]
Loss Per Share, Basic & Diluted (in dollars per share)	$ (1.66)	$ (13.80)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted Average Shares Outstanding, Basic and Diluted (in shares)	70	70
Products
Revenues:
Revenue	$ 309	$ 450
Costs and Expenses:
Cost of Goods and Services Sold	280	392
Services
Revenues:
Revenue	523	765
Costs and Expenses:
Cost of Goods and Services Sold	$ 356	$ 521