Quarterly Financial Data (Unaudited) Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended														12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Severance and Restructuring Charges						$ 59							$ 96		$ 232	$ 331	$ 0
Selected Quarterly Financial Information [Abstract]
Revenue, Net	$ 2,012	$ 2,237		$ 2,390		2,794		$ 3,727		$ 3,877	$ 3,711		3,596		9,433	14,911	15,263
Gross profit	78	368		374		592		819		992	882		757		1,412	3,450
Net Income (Loss) Attributable to Weatherford	$ (1,208)	$ (170)	[1],[2]	$ (489)	[2],[3]	$ (118)	[2],[4]	$ (475)	[5],[6]	$ 77	$ (145)	[6],[7]	$ (41)	[6],[8]	$ (1,985)	$ (584)	$ (345)
Basic Earnings (Loss) Per Share (in dollars per share)	$ (1.54)	$ (0.22)		$ (0.63)		$ (0.15)		$ (0.61)		$ 0.10	$ (0.19)		$ (0.05)		$ (2.55)	$ (0.75)	$ (0.45)
Diluted Earnings (Loss) Per Share (in dollars per share)	$ (1.54)	$ (0.22)		$ (0.63)		$ (0.15)		$ (0.61)		$ 0.10	$ (0.19)		$ (0.05)		$ (2.55)	$ (0.75)	$ (0.45)

[1] Includes charges of $77 million primarily related to severance and restructuring and supply contracts.

[2] Includes estimated project income of $42 million, for the first quarter of 2015, estimated project loss of $69 million, $44 million and $82 million for the second, third and fourth quarter of 2015, respectively, from our long-term early production facility construction contract

[3] Includes charges of $395 million primarily related to long-lived asset impairments, litigation, and severance and restructuring.

[4] Includes charges of $59 million primarily related to severance and restructuring charges.

[5] Includes net charges of $140 million primarily related to severance and restructuring and gain on sale of business.

[6] Includes net charges of $169 million primarily related to long-lived asset impairments, severance and restructuring, gain on sale of business and equity investment of $311 million and $245 million of foreign currency related charges.

[7] Includes charges of $345 million primarily related to long-lived asset and goodwill impairments, and severance and restructuring.

[8] Includes charges of $96 million primarily related to severance and restructuring