Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Current Assets
Cash and Cash Equivalents	$ 582	$ 435	$ 316	$ 300
Other Current Assets	8,345	9,349
Total Current Assets	8,927	9,784
Equity Investments in Affiliates	0	0
Equity Held in Parent		0
Intercompany Receivables, Net	0	0
Other Assets	11,800	12,193
Total Assets	20,727	21,977
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,715	1,653
Accounts Payable and Other Current Liabilities	3,163	4,085
Total Current Liabilities	4,878	5,738
Long-term Debt	7,004	7,061
Intercompany Payables, Net	0	0
Other Long-term Liabilities	903	975
Total Liabilities	12,785	13,774
Weatherford Shareholders’ Equity	7,863	8,162
Noncontrolling Interests	79	41
Total Liabilities and Shareholders’ Equity	20,727	21,977
Weatherford Ireland [Member]
Current Assets
Cash and Cash Equivalents	0	0
Other Current Assets	4
Total Current Assets	4
Equity Investments in Affiliates	9,493
Intercompany Receivables, Net	0
Other Assets	5
Total Assets	9,502
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0
Accounts Payable and Other Current Liabilities	19
Total Current Liabilities	19
Long-term Debt	0
Intercompany Payables, Net	1,607
Other Long-term Liabilities	13
Total Liabilities	1,639
Weatherford Shareholders’ Equity	7,863
Noncontrolling Interests	0
Total Liabilities and Shareholders’ Equity	9,502
Weatherford Switzerland [Member]
Current Assets
Cash and Cash Equivalents		0	1	0
Other Current Assets		57
Total Current Assets		57
Equity Investments in Affiliates		8,663
Equity Held in Parent		0
Intercompany Receivables, Net		0
Other Assets		7
Total Assets		8,727
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt		0
Accounts Payable and Other Current Liabilities		312
Total Current Liabilities		312
Long-term Debt		0
Intercompany Payables, Net		243
Other Long-term Liabilities		10
Total Liabilities		565
Weatherford Shareholders’ Equity		8,162
Noncontrolling Interests		0
Total Liabilities and Shareholders’ Equity		8,727
Weatherford Bermuda [Member]
Current Assets
Cash and Cash Equivalents	3	0	3	0
Other Current Assets	5	5
Total Current Assets	8	5
Equity Investments in Affiliates	11,082	11,742
Equity Held in Parent		0
Intercompany Receivables, Net	0	0
Other Assets	37	41
Total Assets	11,127	11,788
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	1,585	1,445
Accounts Payable and Other Current Liabilities	70	129
Total Current Liabilities	1,655	1,574
Long-term Debt	5,888	5,891
Intercompany Payables, Net	5,133	6,755
Other Long-term Liabilities	89	97
Total Liabilities	12,765	14,317
Weatherford Shareholders’ Equity	(1,638)	(2,529)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	11,127	11,788
Weatherford Delaware [Member]
Current Assets
Cash and Cash Equivalents	22	0	0	0
Other Current Assets	453	415
Total Current Assets	475	415
Equity Investments in Affiliates	8,329	8,065
Equity Held in Parent		10
Intercompany Receivables, Net	0	0
Other Assets	17	17
Total Assets	8,821	8,507
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	22	23
Accounts Payable and Other Current Liabilities	0	0
Total Current Liabilities	22	23
Long-term Debt	970	986
Intercompany Payables, Net	443	306
Other Long-term Liabilities	8	2
Total Liabilities	1,443	1,317
Weatherford Shareholders’ Equity	7,378	7,190
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	8,821	8,507
Other Subsidiaries [Member]
Current Assets
Cash and Cash Equivalents	557	435	312	300
Other Current Assets	8,329	9,280
Total Current Assets	8,886	9,715
Equity Investments in Affiliates	5,281	6,466
Equity Held in Parent		27
Intercompany Receivables, Net	7,183	7,304
Other Assets	11,741	12,128
Total Assets	33,091	35,640
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	108	185
Accounts Payable and Other Current Liabilities	3,520	4,052
Total Current Liabilities	3,628	4,237
Long-term Debt	145	184
Intercompany Payables, Net	0	0
Other Long-term Liabilities	793	866
Total Liabilities	4,566	5,287
Weatherford Shareholders’ Equity	28,446	30,312
Noncontrolling Interests	79	41
Total Liabilities and Shareholders’ Equity	33,091	35,640
Eliminations [Member]
Current Assets
Cash and Cash Equivalents	0	0	0	0
Other Current Assets	(446)	(408)
Total Current Assets	(446)	(408)
Equity Investments in Affiliates	(34,185)	(34,936)
Equity Held in Parent		(37)
Intercompany Receivables, Net	(7,183)	(7,304)
Other Assets	0	0
Total Assets	(41,814)	(42,685)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	(446)	(408)
Total Current Liabilities	(446)	(408)
Long-term Debt	1	0
Intercompany Payables, Net	(7,183)	(7,304)
Other Long-term Liabilities	0	0
Total Liabilities	(7,628)	(7,712)
Weatherford Shareholders’ Equity	(34,186)	(34,973)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	$ (41,814)	$ (42,685)