Quarterly Financial Data (Unaudited) Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended																11 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019		Mar. 31, 2019		Dec. 31, 2018		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 13, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Selected Quarterly Financial Information [Abstract]
Revenues	$ 261	$ 985		$ 1,314		$ 1,309		$ 1,346		$ 1,429		$ 1,444		$ 1,448		$ 1,423		$ 4,954	$ 4,954	$ 5,744	$ 5,699
Gross profit	53	240		307		290		264		308		339		305		278			1,101	1,230
Net Income (Loss) Attributable to Weatherford	$ (26)	$ 5,279	[1]	$ (821)	[2]	$ (316)	[3]	$ (481)	[4]	$ (2,103)	[5],[6]	$ (199)	[5]	$ (264)	[5],[7]	$ (245)	[5],[8]	$ 3,661	$ 3,661	$ (2,811)	$ (2,813)
Earnings Per Share, Basic and Diluted	$ (0.37)	$ 5.26		$ (0.82)		$ (0.31)		$ (0.48)		$ (2.10)		$ (0.20)		$ (0.26)		$ (0.25)		$ 3.65	$ 3.65	$ (2.82)	$ (2.84)

[1] Includes reorganization gains of $5.7 billion related to our emergence from bankruptcy and Fresh Start Accounting. Includes charges of $342 million primarily related to

[2] Includes charges of $487 million primarily related to goodwill impairment of $399 million, restructuring and transformation charges and asset write-downs and inventory charges. We also incurred reorganization charges of $303 million related to our bankruptcy Plan.

[3] Includes charges of $125 million primarily related to goodwill impairment of $102 million and prepetition charges of $76 million, as well as $61 million primarily related to restructuring, transformation and asset write-downs

[4] Includes charges of $298 million primarily related to goodwill impairment of $229 million, as well as $69 million primarily related to long-lived asset impairments, asset write-downs and inventory charges, restructuring and transformation charges and prepetition charges.

[5] Includes charges of $2.0 billion

[6] Includes charges of $95 million

[7] Includes credits of $109 million

[8] Includes charges of $57 million