Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Current Assets
Cash and Cash Equivalents	$ 445	$ 1,037	$ 440	$ 467
Other Current Assets	4,598	3,873
Total Current Assets	5,043	4,910
Equity Investments in Affiliates	0	0
Intercompany Receivables, Net	0	0
Other Assets	6,970	7,754
Total Assets	12,013	12,664
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	391	179
Accounts Payable and Other Current Liabilities	2,079	2,249
Total Current Liabilities	2,470	2,428
Long-term Debt	7,530	7,403
Intercompany Payables, Net	0	0
Other Long-term Liabilities	629	765
Total Liabilities	10,629	10,596
Weatherford Shareholders’ Equity	1,328	2,012
Noncontrolling Interests	56	56
Total Liabilities and Shareholders’ Equity	12,013	12,664
Other Subsidiaries
Current Assets
Cash and Cash Equivalents	388	447	419	443
Other Current Assets	4,628	3,891
Total Current Assets	5,016	4,338
Equity Investments in Affiliates	1,028	1,037
Intercompany Receivables, Net	3,571	3,762
Other Assets	6,956	7,751
Total Assets	16,571	16,888
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	47	32
Accounts Payable and Other Current Liabilities	2,478	2,488
Total Current Liabilities	2,525	2,520
Long-term Debt	148	204
Intercompany Payables, Net	0	0
Other Long-term Liabilities	382	457
Total Liabilities	3,055	3,181
Weatherford Shareholders’ Equity	13,460	13,651
Noncontrolling Interests	56	56
Total Liabilities and Shareholders’ Equity	16,571	16,888
Weatherford Ireland
Current Assets
Cash and Cash Equivalents	0	0	0	0
Other Current Assets	1	1
Total Current Assets	1	1
Equity Investments in Affiliates	1,662	2,415
Intercompany Receivables, Net	0	0
Other Assets	0	2
Total Assets	1,663	2,418
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	6	105
Total Current Liabilities	6	105
Long-term Debt	0	0
Intercompany Payables, Net	232	145
Other Long-term Liabilities	97	156
Total Liabilities	335	406
Weatherford Shareholders’ Equity	1,328	2,012
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	1,663	2,418
Weatherford Bermuda
Current Assets
Cash and Cash Equivalents	57	586	21	2
Other Current Assets	0	0
Total Current Assets	57	586
Equity Investments in Affiliates	7,979	8,669
Intercompany Receivables, Net	219	0
Other Assets	10	13
Total Assets	8,265	9,268
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	344	53
Accounts Payable and Other Current Liabilities	138	198
Total Current Liabilities	482	251
Long-term Debt	7,127	6,944
Intercompany Payables, Net	0	224
Other Long-term Liabilities	150	152
Total Liabilities	7,759	7,571
Weatherford Shareholders’ Equity	506	1,697
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	8,265	9,268
Weatherford Delaware
Current Assets
Cash and Cash Equivalents	0	4	0	22
Other Current Assets	512	512
Total Current Assets	512	516
Equity Investments in Affiliates	8,025	8,301
Intercompany Receivables, Net	0	0
Other Assets	4	0
Total Assets	8,541	8,817
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	94
Accounts Payable and Other Current Liabilities	0	0
Total Current Liabilities	0	94
Long-term Debt	161	148
Intercompany Payables, Net	3,559	3,393
Other Long-term Liabilities	143	146
Total Liabilities	3,863	3,781
Weatherford Shareholders’ Equity	4,678	5,036
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	8,541	8,817
Eliminations
Current Assets
Cash and Cash Equivalents	0	0	$ 0	$ 0
Other Current Assets	(543)	(531)
Total Current Assets	(543)	(531)
Equity Investments in Affiliates	(18,694)	(20,422)
Intercompany Receivables, Net	(3,790)	(3,762)
Other Assets	0	(12)
Total Assets	(23,027)	(24,727)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	(543)	(542)
Total Current Liabilities	(543)	(542)
Long-term Debt	94	107
Intercompany Payables, Net	(3,791)	(3,762)
Other Long-term Liabilities	(143)	(146)
Total Liabilities	(4,383)	(4,343)
Weatherford Shareholders’ Equity	(18,644)	(20,384)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	$ (23,027)	$ (24,727)