Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Current Assets
Cash and Cash Equivalents	$ 519	$ 474	$ 582	$ 435
Other Current Assets	5,996	7,470
Total Current Assets	6,515	7,944
Equity Investments in Affiliates	0	0
Intercompany Receivables, Net	0	0
Other Assets	10,284	10,945
Total Assets	16,799	18,889
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,684	727
Accounts Payable and Other Current Liabilities	2,341	3,300
Total Current Liabilities	4,025	4,027
Long-term Debt	6,020	6,798
Intercompany Payables, Net	0	0
Other Long-term Liabilities	1,000	1,031
Total Liabilities	11,045	11,856
Weatherford Shareholders’ Equity	5,684	6,958
Noncontrolling Interests	70	75
Total Liabilities and Shareholders’ Equity	16,799	18,889
Weatherford Ireland [Member]
Current Assets
Cash and Cash Equivalents	0	1	0	0
Other Current Assets	5	4
Total Current Assets	5	5
Equity Investments in Affiliates	7,520	8,662
Intercompany Receivables, Net	0	0
Other Assets	3	5
Total Assets	7,528	8,672
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	16	43
Total Current Liabilities	16	43
Long-term Debt	0	0
Intercompany Payables, Net	1,814	1,666
Other Long-term Liabilities	14	5
Total Liabilities	1,844	1,714
Weatherford Shareholders’ Equity	5,684	6,958
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	7,528	8,672
Weatherford Bermuda [Member]
Current Assets
Cash and Cash Equivalents	1	0	3	0
Other Current Assets	0	12
Total Current Assets	1	12
Equity Investments in Affiliates	9,808	10,490
Intercompany Receivables, Net	0	0
Other Assets	30	35
Total Assets	9,839	10,537
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,599	618
Accounts Payable and Other Current Liabilities	185	256
Total Current Liabilities	1,784	874
Long-term Debt	5,001	5,749
Intercompany Payables, Net	6,086	6,202
Other Long-term Liabilities	77	82
Total Liabilities	12,948	12,907
Weatherford Shareholders’ Equity	(3,109)	(2,370)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	9,839	10,537
Weatherford Delaware [Member]
Current Assets
Cash and Cash Equivalents	22	22	22	0
Other Current Assets	521	544
Total Current Assets	543	566
Equity Investments in Affiliates	9,158	9,730
Intercompany Receivables, Net	0	0
Other Assets	77	16
Total Assets	9,778	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	906	911
Intercompany Payables, Net	2,729	2,622
Other Long-term Liabilities	11	5
Total Liabilities	3,652	3,544
Weatherford Shareholders’ Equity	6,126	6,768
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	9,778	10,312
Other Subsidiaries [Member]
Current Assets
Cash and Cash Equivalents	496	451	557	435
Other Current Assets	6,055	7,524
Total Current Assets	6,551	7,975
Equity Investments in Affiliates	3,902	3,974
Intercompany Receivables, Net	10,629	10,490
Other Assets	10,174	10,889
Total Assets	31,256	33,328
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	79	103
Accounts Payable and Other Current Liabilities	2,725	3,615
Total Current Liabilities	2,804	3,718
Long-term Debt	113	137
Intercompany Payables, Net	0	0
Other Long-term Liabilities	898	939
Total Liabilities	3,815	4,794
Weatherford Shareholders’ Equity	27,371	28,459
Noncontrolling Interests	70	75
Total Liabilities and Shareholders’ Equity	31,256	33,328
Parent Company [Member]
Current Assets
Cash and Cash Equivalents		1
Eliminations [Member]
Current Assets
Cash and Cash Equivalents	0	0	$ 0	$ 0
Other Current Assets	(585)	(614)
Total Current Assets	(585)	(614)
Equity Investments in Affiliates	(30,388)	(32,856)
Intercompany Receivables, Net	(10,629)	(10,490)
Other Assets	0	0
Total Assets	(41,602)	(43,960)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	(585)	(614)
Total Current Liabilities	(585)	(614)
Long-term Debt	0	1
Intercompany Payables, Net	(10,629)	(10,490)
Other Long-term Liabilities	0	0
Total Liabilities	(11,214)	(11,103)
Weatherford Shareholders’ Equity	(30,388)	(32,857)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	$ (41,602)	$ (43,960)