Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Current Assets
Cash and Cash Equivalents	$ 512	$ 474	$ 367	$ 435
Other Current Assets	7,080	7,470
Total Current Assets	7,592	7,944
Equity Investments in Affiliates	0	0
Equity Held in Parent		0
Intercompany Receivables, Net	0	0
Other Assets	10,631	10,945
Total Assets	18,223	18,889
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,554	727
Accounts Payable and Other Current Liabilities	2,839	3,300
Total Current Liabilities	4,393	4,027
Long-term Debt	6,278	6,798
Intercompany Payables, Net	0	0
Other Long-term Liabilities	954	1,031
Total Liabilities	11,625	11,856
Weatherford Shareholders’ Equity	6,529	6,958
Noncontrolling Interests	69	75
Total Liabilities and Shareholders’ Equity	18,223	18,889
Weatherford Ireland [Member]
Current Assets
Cash and Cash Equivalents	0	1
Other Current Assets	4
Total Current Assets	4
Equity Investments in Affiliates	8,242
Intercompany Receivables, Net	0
Other Assets	4
Total Assets	8,250
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0
Accounts Payable and Other Current Liabilities	42
Total Current Liabilities	42
Long-term Debt	0
Intercompany Payables, Net	1,668
Other Long-term Liabilities	11
Total Liabilities	1,721
Weatherford Shareholders’ Equity	6,529
Noncontrolling Interests	0
Total Liabilities and Shareholders’ Equity	8,250
Weatherford Switzerland [Member]
Current Assets
Cash and Cash Equivalents		1	4	0
Other Current Assets		4
Total Current Assets		5
Equity Investments in Affiliates		8,662
Equity Held in Parent		0
Intercompany Receivables, Net		0
Other Assets		5
Total Assets		8,672
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt		0
Accounts Payable and Other Current Liabilities		43
Total Current Liabilities		43
Long-term Debt		0
Intercompany Payables, Net		1,666
Other Long-term Liabilities		5
Total Liabilities		1,714
Weatherford Shareholders’ Equity		6,958
Noncontrolling Interests		0
Total Liabilities and Shareholders’ Equity		8,672
Weatherford Bermuda [Member]
Current Assets
Cash and Cash Equivalents	34	0	0	0
Other Current Assets	0	12
Total Current Assets	34	12
Equity Investments in Affiliates	10,613	10,490
Equity Held in Parent		0
Intercompany Receivables, Net	0	0
Other Assets	33	35
Total Assets	10,680	10,537
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,466	618
Accounts Payable and Other Current Liabilities	185	256
Total Current Liabilities	1,651	874
Long-term Debt	5,239	5,749
Intercompany Payables, Net	5,836	6,202
Other Long-term Liabilities	77	82
Total Liabilities	12,803	12,907
Weatherford Shareholders’ Equity	(2,123)	(2,370)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	10,680	10,537
Weatherford Delaware [Member]
Current Assets
Cash and Cash Equivalents	22	22	0	0
Other Current Assets	532	544
Total Current Assets	554	566
Equity Investments in Affiliates	9,707	9,730
Equity Held in Parent		0
Intercompany Receivables, Net	0	0
Other Assets	20	16
Total Assets	10,281	10,312
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	6	6
Accounts Payable and Other Current Liabilities	0	0
Total Current Liabilities	6	6
Long-term Debt	910	911
Intercompany Payables, Net	2,612	2,622
Other Long-term Liabilities	5	5
Total Liabilities	3,533	3,544
Weatherford Shareholders’ Equity	6,748	6,768
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	10,281	10,312
Other Subsidiaries [Member]
Current Assets
Cash and Cash Equivalents	456	451	363	435
Other Current Assets	7,138	7,524
Total Current Assets	7,594	7,975
Equity Investments in Affiliates	3,926	3,974
Equity Held in Parent		0
Intercompany Receivables, Net	10,116	10,490
Other Assets	10,574	10,889
Total Assets	32,210	33,328
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	82	103
Accounts Payable and Other Current Liabilities	3,206	3,615
Total Current Liabilities	3,288	3,718
Long-term Debt	129	137
Intercompany Payables, Net	0	0
Other Long-term Liabilities	861	939
Total Liabilities	4,278	4,794
Weatherford Shareholders’ Equity	27,863	28,459
Noncontrolling Interests	69	75
Total Liabilities and Shareholders’ Equity	32,210	33,328
Eliminations [Member]
Current Assets
Cash and Cash Equivalents	0	0	0	0
Other Current Assets	(594)	(614)
Total Current Assets	(594)	(614)
Equity Investments in Affiliates	(32,488)	(32,856)
Equity Held in Parent		0
Intercompany Receivables, Net	(10,116)	(10,490)
Other Assets	0	0
Total Assets	(43,198)	(43,960)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	(594)	(614)
Total Current Liabilities	(594)	(614)
Long-term Debt	0	1
Intercompany Payables, Net	(10,116)	(10,490)
Other Long-term Liabilities	0	0
Total Liabilities	(10,710)	(11,103)
Weatherford Shareholders’ Equity	(32,488)	(32,857)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	$ (43,198)	$ (43,960)