Weatherford International Ltd./Switzerland (WFT) 10-K 25 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 14, 2014	Jun. 30, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'Weatherford International Ltd./Switzerland	'	'
Entity Central Index Key	'0001453090	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	'	$8
Entity Common Stock, Shares Outstanding	'	771,183,045	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current Assets:	'	'
Cash and Cash Equivalents	$435	$300
Accounts Receivable, Net of Allowance for Uncollectible Accounts of $114 in 2013 and $84 in 2012	3,594	3,885
Inventories, Net	3,371	3,675
Deferred Tax Assets	309	376
Other Current Assets	1,065	793
Total Current Assets	8,774	9,029
Land, Buildings and Leasehold Improvements	1,860	1,714
Rental and Service Equipment	10,869	10,208
Machinery and Other	2,547	2,407
Property, Plant and Equipment, Gross	15,276	14,329
Less: Accumulated Depreciation	6,908	6,030
Property, Plant and Equipment, Net	8,368	8,299
Goodwill	3,709	3,871
Other Intangible Assets, Net	626	766
Equity Investments	296	646
Other Non-current Assets	204	184
Total Assets	21,977	22,795
Current Liabilities:	'	'
Short-term Borrowings and Current Portion of Long-term Debt	1,666	1,585
Accounts Payable	2,091	2,108
Accrued Salaries and Benefits	472	490
Billings in Excess of Costs and Estimated Earnings	127	281
Income Taxes Payable	183	167
Other Current Liabilities	1,160	1,079
Total Current Liabilities	5,699	5,710
Long-term Debt	7,061	7,049
Other Non-current Liabilities	1,014	1,218
Total Liabilities	13,774	13,977
Shareholders’ Equity:	'	'
Shares - Par Value 1.16 Swiss Francs; Authorized 840 shares, Conditionally Authorized 372 shares, Issued 840 shares at December 31, 2013 and 2012, Outstanding 767 shares and 761 shares at December 31, 2013 and 2012, respectively.	775	775
Capital in Excess of Par Value	4,600	4,674
Treasury Shares, 73 shares and 79 shares, at cost, at December 31, 2013 and 2012, respectively.	-37	-182
Retained Earnings	3,011	3,356
Accumulated Other Comprehensive Income	-187	163
Weatherford Shareholders’ Equity	8,162	8,786
Noncontrolling Interests	41	32
Total Shareholders’ Equity	8,203	8,818
Total Liabilities and Shareholders’ Equity	$21,977	$22,795

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical)	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
In Millions, except Share data, unless otherwise specified	USD ($)	CHF	USD ($)	CHF
Current Assets:	'	'	'	'
Allowance for Uncollectible Accounts	$114	'	$84	'
Shareholders' Equity:	'	'	'	'
Common Shares, Par Value (in CHF per share)	'	1.16	'	1.16
Common Shares, Authorized (in shares)	840,000,000	840,000,000	840,000,000	840,000,000
Common Shares, Conditionally Authorized (in shares)	372,000,000	372,000,000	372,000,000	372,000,000
Common Shares, Issued (in shares)	840,000,000	840,000,000	840,000,000	840,000,000
Common Shares, Outstanding (in shares)	767,000,000	767,000,000	761,000,000	761,000,000
Treasury Shares, at cost (in shares)	73,000,000	73,000,000	79,000,000	79,000,000

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues:	'		'		'
Products	$6,007		$6,024		$4,884
Services	9,256		9,191		8,104
Total Revenue	15,263		15,215		12,988
Costs and Expenses:	'		'		'
Cost of Products	4,480		4,693		3,742
Cost of Services	7,822		7,162		5,936
Research and Development	265		257		245
Selling, General and Administrative Attributable to Segments	1,728		1,585		1,532
Corporate General and Administrative	316		355		226
Goodwill and Equity Investment Impairment	0		793		0
U.S. Government Investigation Loss	153		100		0
Gain on Sale of Businesses	-24		-28		0
Total Costs and Expenses	14,740		14,917		11,681
Operating Income (Loss)	523	[1]	298	[2]	1,307
Other Income (Expense):	'		'		'
Interest Expense, Net	-516		-486		-453
Devaluation of Venezuelan Bolivar	-100		0		0
Other, Net	-77		-100		-107
Income (Loss) Before Income Taxes	-170		-288		747
Provision for Income Taxes	-144		-462		-542
Net Income (Loss)	-314		-750		205
Net Income Attributable to Noncontrolling Interests	-31		-28		-16
Net Income (Loss) Attributable to Weatherford	($345)		($778)		$189
Earnings (Loss) Per Share Attributable To Weatherford:	'		'		'
Basic (in dollars per share)	($0.45)	[3]	($1.02)		$0.25
Diluted (in dollars per share)	($0.45)	[3]	($1.02)		$0.25
Weighted Average Shares Outstanding:	'		'		'
Basic (in shares)	772		765		753
Diluted (in shares)	772		765		760
[1]	For the year ended December 31, 2013, we recognized a charge for bad debt expense of $98 million attributable to our reporting segments as follows: $59 million in Latin America, $27 million in MENA/Asia Pacific, $10 million for Europe/SSA/Russia, and $2 million in North America. See footnote (b) below for additional details for the bad debt expense charge in Latin America of $59 million. During 2013, we recognized a charge for excess and obsolete inventory of $62 million attributable to each reporting segment as follows: $35 million in North America, $7 million in MENA/Asia Pacific, $13 million in Europe/SSA/Russia and $7 million in Latin America.
[2]	Other Items for 2012 include income tax restatement and material weakness remediation expenses of $103 million, $13 million of costs incurred in connection with U.S. government investigations, $11 million of non-recurring fees and expenses associated with our 2012 debt consent solicitation and severance, exit and other charges of $79 million, offset by a $28 million gain related to the sale of our subsea controls business.
[3]	Per share amounts may not sum across due to rounding.

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net Income (Loss)	($314)	($750)	$205
Other Comprehensive Income (Loss), Net of Tax:	'	'	'
Foreign Currency Translation	-353	86	-118
Defined Benefit Pension Activity	2	-4	-5
Other	1	1	1
Other Comprehensive Income (Loss)	-350	83	-122
Comprehensive Income (Loss)	-664	-667	83
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	-31	-28	-16
Comprehensive Income (Loss) Attributable to Weatherford	($695)	($695)	$67

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Total	Shares Issued [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Shares [Member]	Noncontrolling Interest [Member]
In Millions, unless otherwise specified
Balance, beginning balance at Dec. 31, 2010	$9,118	$761	$4,617	$3,949	$202	($478)	$67
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Net Income	205	'	'	189	'	'	16
Other Comprehensive Income (Loss)	-122	'	'	'	-122	'	'
Dividends Paid to Noncontrolling Interests	-29	'	'	'	'	'	-29
Shares Issued for Acquisitions	134	6	63	'	'	65	'
Equity Awards Granted, Vested and Exercised	72	'	-7	'	'	79	'
Excess Tax Benefits of Share-based Compensation Plans	4	'	4	'	'	'	'
Deconsolidation of Joint Ventures	-38	'	'	-4	'	'	-34
Other	1	2	-2	'	'	'	1
Balance, ending balance at Dec. 31, 2011	9,345	769	4,675	4,134	80	-334	21
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Net Income	-750	'	'	-778	'	'	28
Other Comprehensive Income (Loss)	83	'	'	'	83	'	'
Dividends Paid to Noncontrolling Interests	-21	'	'	'	'	'	-21
Shares Issued for Acquisitions	39	0	-27	'	'	66	'
Equity Awards Granted, Vested and Exercised	64	'	-22	'	'	86	'
Excess Tax Benefits of Share-based Compensation Plans	-3	'	-3	'	'	'	'
Exercise of Warrants	65	6	59	'	'	'	'
Other	-4	'	-8	'	'	'	4
Balance, ending balance at Dec. 31, 2012	8,818	775	4,674	3,356	163	-182	32
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Net Income	-314	'	'	-345	'	'	31
Other Comprehensive Income (Loss)	-350	'	'	'	-350	'	'
Dividends Paid to Noncontrolling Interests	-27	'	'	'	'	'	-27
Equity Awards Granted, Vested and Exercised	77	'	-68	'	'	145	'
Excess Tax Benefits of Share-based Compensation Plans	-1	'	-1	'	'	'	'
Other	0	'	-5	'	'	'	5
Balance, ending balance at Dec. 31, 2013	$8,203	$775	$4,600	$3,011	($187)	($37)	$41

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:	'	'	'
Net Income	($314)	($750)	$205
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities:	'	'	'
Depreciation and Amortization	1,402	1,282	1,136
Goodwill and Equity Investment Impairment	0	793	0
U.S. Government Investigation Loss	153	100	0
Employee Share-Based Compensation Expense	66	76	87
Bad Debt Expense	102	22	52
(Gain) Loss on Sale of Assets and Businesses, Net	6	-9	29
Deferred Income Tax Provision (Benefit)	-33	-13	121
Excess Tax Benefits from Share-Based Compensation	1	-1	-4
Devaluation of Venezuelan Bolivar	100	0	0
Other, Net	10	43	-19
Change in Operating Assets and Liabilities, Net of Effect of Businesses Acquired:	'	'	'
Accounts Receivable	-12	-705	-623
Inventories	129	-738	-606
Other Current Assets	-65	-231	-81
Accounts Payable	69	543	242
Billings in Excess of Costs and Estimated Earnings	-154	255	29
Other Current Liabilities	-185	452	202
Other, Net	-46	102	82
Net Cash Provided by Operating Activities	1,229	1,221	852
Cash Flows from Investing Activities:	'	'	'
Capital Expenditures for Property, Plant and Equipment	-1,575	-2,177	-1,524
Acquisitions of Businesses, Net of Cash Acquired	-8	-165	-144
Acquisition of Intellectual Property	-9	-17	-8
Acquisition of Equity Investments in Unconsolidated Affiliates	0	-8	-14
Proceeds from Sale of Assets and Businesses, Net	488	61	31
Other Investing Activities	0	0	-15
Net Cash Used by Investing Activities	-1,104	-2,306	-1,674
Cash Flows From Financing Activities:	'	'	'
Borrowings of Long-term Debt	3	1,313	22
Repayments of Long-term Debt	-603	-310	-216
Borrowings (Repayments) of Short-term Debt, Net	612	-13	992
Proceeds from Exercise of Warrants	0	65	0
Excess Tax Benefits from Share-Based Compensation	-1	1	4
Other Financing Activities, Net	-5	-44	-25
Net Cash Provided by Financing Activities	6	1,012	777
Effect of Exchange Rate Changes on Cash and Cash Equivalents	4	2	0
Net Increase (Decrease) in Cash and Cash Equivalents	135	-71	-45
Cash and Cash Equivalents at Beginning of Year	300	371	416
Cash and Cash Equivalents at End of Year	$435	$300	$371

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Organization and Nature of Operations
	Weatherford International Ltd., a Swiss joint-stock corporation (together with its subsidiaries, “Weatherford,” the “Company,” “we,” “us,” and “our”), is one of the world’s leading providers of equipment and services used in the drilling, evaluation, completion, production and intervention of oil and natural gas wells. We operate in over 100 countries, which are located in nearly all of the oil and natural gas producing regions in the world. Many of our businesses, including those of our predecessor companies, have been operating for more than 50 years.
	Our parent company was Weatherford International, Inc., a Delaware corporation (“Weatherford Delaware”), until we moved our incorporation to Bermuda in 2002. In February 2009, we completed a share exchange transaction in which Weatherford International Ltd., a Bermuda exempted company, and our then parent company (“Weatherford Bermuda”), became a wholly-owned subsidiary of Weatherford International Ltd., a Swiss joint-stock corporation (“Weatherford Switzerland”), for purposes of changing the Company’s place of incorporation from Bermuda to Switzerland (the “Transaction”). Pursuant to the Transaction, each common share, par value U.S. $1.00 per share, of Weatherford Bermuda was exchanged for one registered share, par value 1.16 Swiss francs (“CHF”) per share, of Weatherford Switzerland. Weatherford Bermuda and Weatherford Delaware continue to be wholly-owned subsidiaries of Weatherford Switzerland.
	Principles of Consolidation
	The consolidated financial statements include the accounts of Weatherford International Ltd., all wholly-owned subsidiaries, controlled joint ventures and variable interest entities in which the Company has determined it is the primary beneficiary for accounting purposes. All material intercompany accounts and transactions have been eliminated within our consolidated financial statements.
	Investments in affiliates in which we exercise significant influence over operating and financial policies are accounted for using the equity method. We recognize equity in earnings of unconsolidated affiliates in Selling, General and Administration attributable to segments in our Consolidated Statements of Operations (see Note 9 –Equity Investments).
	We have a significant variable interest in a lessor trust that is a variable interest entity. We are not the primary beneficiary and do not consolidate the trust. The variable interest in the trust is created by the residual fair value guarantees on the leased assets. Our maximum exposure to loss associated with this variable interest and the respective fair value guarantees totaled $46 million at December 31, 2013. In addition, we have guaranteed debt on behalf of equity investees in whom we have a variable interest and for which we are not the primary beneficiary. These guarantees totaled $118 million at December 31, 2013.
	Deconsolidation
	During 2011, we deconsolidated three joint ventures that should have been deconsolidated as of January 1, 2010 in accordance with the U.S. generally accepted accounting principles (“U.S. GAAP”) variable interest entity accounting guidance, effective in 2010. We recognized equity investments totaling $43 million and derecognized the associated noncontrolling interests totaling $34 million.
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period and disclosure of contingent liabilities. On an on-going basis, we evaluate our estimates, including those related to uncollectible accounts receivable, lower of cost or market value of inventories, equity investments, intangible assets and goodwill, property, plant and equipment, income taxes, percentage-of-completion accounting for long-term contracts, self-insurance, pension and post-retirement benefit plans, contingencies and share based payments. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other sources. Actual results could differ from those estimates.
	Disputes, Litigation and Contingencies
	We accrue an estimate of the probable and estimable cost to resolve certain legal and investigation matters. For matters not deemed probable and reasonably estimable, we have not accrued any amounts in accordance with U.S. GAAP. Our contingent loss estimates are based upon an analysis of potential results, assuming a combination of probable litigation and settlement strategies. The accuracy of these estimates is impacted by the complexity of the associated issues.
	Cash and Cash Equivalents
	We consider all highly liquid investments with original maturities of three months or less to be cash equivalents.
	Allowance for Doubtful Accounts
	We establish an allowance for doubtful accounts based on various factors including historical experience, the current aging status of our customer accounts, the financial condition of our customers and the business and political environment in which our customers operate. Provisions for doubtful accounts are recorded when it becomes probable that customer accounts are uncollectible.
	Major Customers and Credit Risk
	Substantially all of our customers are engaged in the energy industry. This concentration of customers may impact our overall exposure to credit risk, either positively or negatively, in that customers may be similarly affected by changes in economic and industry conditions. We perform on-going credit evaluations of our customers and do not generally require collateral in support of our trade receivables. We maintain reserves for potential credit losses, and actual losses have historically been within our expectations. International sales also present various risks, including risks of war, civil disturbances and governmental activities that may limit or disrupt markets, restrict the movement of funds, or result in the deprivation of contract rights or the taking of property without fair consideration. Most of our international sales are to large international or national oil companies and these sales have resulted in a concentration of receivables from certain national oil companies in Latin America. As of December 31, 2013 our receivables from Latin America customers accounted for 38% of our net outstanding accounts receivable balance with $326 million due from Petroleos de Venezuela, S.A. (“PDVSA”) and $437 million due from Petroleos Mexicanos (“Pemex”). In 2013 we recognized a loss of $58 million, upon settlement of $127 million in outstanding receivables due from PDVSA. We accepted bonds with a face value of $127 million from PDVSA in full settlement of $127 million in trade receivables. Upon receipt, we immediately sold these bonds for a loss in a series of transactions. During 2013, 2012 and 2011, no individual customer accounted for more than 10% of our consolidated revenues.
	Inventories
	We value our inventories at lower of cost or market using either the first-in, first-out (“FIFO”) or average cost methods. Cost represents third-party invoice or production cost. Production cost includes material, labor and manufacturing overhead. Work in process and finished goods inventories include the cost of materials, labor and manufacturing overhead.
	Property, Plant and Equipment
	We carry our property, plant and equipment, both owned and under capital lease, at cost less accumulated depreciation. The carrying values are based on our estimates and judgments relative to capitalized costs, useful lives and salvage value, where applicable. We expense maintenance and repairs as incurred. We capitalize expenditures for improvements as well as renewals and replacements that extend the useful life of the asset. We depreciate our fixed assets on a straight-line basis over their estimated useful lives, allowing for salvage value where applicable.
	Our depreciation expense for the years ended December 31, 2013, 2012 and 2011 was $1.3 billion, $1.2 billion and $1.0 billion, respectively. We classify our rig assets as Rental and Service Equipment on the Consolidated Balance Sheets.
	The estimated useful lives of our major classes of property, plant and equipment are as follows:
		Estimated
		Useful Lives
	Buildings and leasehold improvements	10 – 40 years or lease term
	Rental and service equipment	2 – 20 years
	Machinery and other	2 – 12 years
	Goodwill and Indefinite-Lived Intangible Assets
	We test for the impairment of goodwill and other intangible assets with indefinite lives annually as of October 1, or more frequently if indicators of impairment exist. Our goodwill impairment test involves a comparison of the fair value of each of our reporting units with its carrying amount.
	The fair value of our reporting units is determined using primarily an income approach. The fair value was estimated using discounted cash flows using a discount rate adjusted for credit risk of the regional reporting unit tested. If the fair value of a reporting unit is less than the recorded book value of the reporting unit’s assets (including goodwill), less liabilities, then a hypothetical purchase price allocation is performed on the reporting unit’s assets and liabilities using the fair value of the reporting unit as the purchase price in the calculation. If the amount of goodwill resulting from this hypothetical purchase price allocation is less than the recorded amount of goodwill, the recorded goodwill is written down to the new amount. Our indefinite-lived asset impairment test involves a comparison of the fair value of the intangible asset and its carrying value. If the fair value is less than the carrying value, the asset is written down to fair value.
	Intangible Assets
	Our intangible assets, excluding goodwill, are acquired technology, licenses, patents, customer relationships and other identifiable intangible assets. Intangible assets are amortized on a straight-line basis over their estimated economic lives generally ranging from two to 20 years, except for intangible assets with indefinite lives, which are not amortized. As many areas of our business rely on patents and proprietary technology, we seek patent protection both inside and outside the U.S. for products and methods that appear to have commercial significance. We capitalize patent defense costs when we determine that a successful defense is probable.
	Long-Lived Assets
	We review our long-lived assets to determine whether any events or changes in circumstances indicate the carrying amount of the assets may not be recoverable. Factors that might indicate a potential impairment may include, but are not limited to, significant decreases in the market value of the long-lived asset, a significant change in the long-lived asset’s physical condition, a change in industry conditions or a reduction in cash flows associated with the use of the long-lived asset. If these or other factors indicate the carrying amount of the asset may not be recoverable, we determine whether an impairment has occurred through analysis of undiscounted cash flow of the asset at the lowest level that has an identifiable cash flow. If an impairment has occurred, we recognize a loss for the difference between the carrying amount and the fair value of the asset. We measure the fair value of the asset using market prices or, in the absence of market prices, based on an estimate of discounted cash flows. Cash flows are generally discounted using an interest rate commensurate with a weighted average cost of capital for a similar asset.
	Research and Development Expenditures
	Research and development expenditures are expensed as incurred.
	Environmental Expenditures
	Environmental expenditures that relate to the remediation of an existing condition caused by past operations and that do not contribute to future revenues are expensed. Liabilities for these expenditures are recorded when it is probable that obligations have been incurred and costs can be reasonably estimated. Estimates are based on available facts and technology, enacted laws and regulations and our prior experience in remediation of contaminated sites.
	Derivative Financial Instruments
	We record derivative instruments on the balance sheet at their fair value, as either an asset or a liability. Changes in the fair value of derivatives are recorded each period in current earnings or other comprehensive income (loss), depending on whether the derivative is designated as part of a hedge relationship, and if so, the type of hedge transaction. Any gain or loss associated with the termination of an interest rate swap that was accounted for as a hedge instrument is deferred and amortized as an adjustment to interest expense over the remaining term of the designated debt instrument.
	Foreign Currency
	Results of operations for our foreign subsidiaries with functional currencies other than the U.S. dollar are translated using average exchange rates during the period. Assets and liabilities of these foreign subsidiaries are translated using the exchange rates in effect at the balance sheet dates, and the resulting translation adjustments are included as Accumulated Other Comprehensive Income (Loss), a component of shareholders’ equity.
	For our subsidiaries that have a functional currency that differs from the currency of their balances and transactions, inventories, property, plant and equipment and other non-monetary assets and liabilities, together with their related elements of expense or income, are remeasured using historical exchange rates. All monetary assets and liabilities are remeasured at current exchange rates. All revenues and expenses are translated at average exchange rates. Remeasurement gains and losses for these subsidiaries are recognized in our results of operations during the period incurred. We had net foreign currency losses, excluding the devaluation of the Venezuelan bolivar of $66 million, $85 million and $84 million in 2013, 2012 and 2011, respectively. In addition, during 2013 we recognized a charge of approximately $100 million on the devaluation of the Venezuelan bolivar. Due to the magnitude, the 2013 devaluation of the Venezuelan bolivar is discussed separately below under the heading “Foreign Currency - Devaluation of Venezuelan Bolivar.” The gain or loss related to individual foreign currency transactions, excluding the devaluation of the Venezuelan bolivar, is included in Other, Net in our Consolidated Statements of Operations.
	Foreign Currency - Devaluation of Venezuelan Bolivar
	On February 8, 2013, the Venezuelan government announced its intention to devalue its currency effective February 13, 2013 at which time the official exchange rate will have moved from 4.30 per dollar to 6.30 per dollar for all goods and services. In connection with this devaluation, we recognized a charge of approximately $100 million in 2013 for the remeasurement of our net monetary assets denominated in the Venezuelan bolivar at the date of the devaluation. Our net investment in Venezuela was $666 million at December 31, 2013. Our net monetary asset position denominated in Venezuelan bolivar was $238 million at December 31, 2013.
	Share-Based Compensation
	We account for all share-based payment awards, including shares issued under employee stock purchase plans, stock options, restricted stock and performance units by measuring these awards at the date of grant and recognizing the grant date fair value as an expense, net of expected forfeitures, over the service period, which is usually the vesting period.
	Income Taxes
	Income taxes have been provided based upon the tax laws and rates in the countries in which our operations are conducted and income is earned. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance for deferred tax assets is recorded when it is more likely than not that some or all of the benefit from the deferred tax asset will not be realized. The impact of an uncertain tax position taken or expected to be taken on an income tax return is recognized in the financial statements at the largest amount that is more likely than not to be sustained upon examination by the relevant taxing authority.
	Revenue Recognition
	Revenue is recognized when all of the following criteria have been met: (1) evidence of an arrangement exists; (2) delivery to and acceptance by the customer has occurred; (3) the price to the customer is fixed or determinable; and (4) collectability is reasonably assured.
	Both contract drilling and pipeline service revenue is contractual by nature and generally governed by day-rate based contracts. We recognize revenue for these day-rate contracts based on the criteria outlined above, which is consistent with our other product offerings.
	From time to time, we may receive revenues for preparation and mobilization of equipment and personnel. In connection with new drilling contracts, revenues earned and incremental costs incurred directly related to preparation and mobilization are deferred and recognized over the primary contract term using the straight-line method. Costs of relocating equipment without contracts to more promising market areas are expensed as incurred. Demobilization fees received are recognized, along with any related expenses, upon completion of contracts.
	We incur rebillable expenses including shipping and handling, third-party inspection and repairs, and customs costs and duties. We recognize the revenue associated with these rebillable expenses as Products Revenues and all related costs as Cost of Products in the accompanying Consolidated Statements of Operations.
	Percentage-of-Completion
	Revenue from certain long-term construction type contracts is reported based on the percentage-of-completion method of accounting. This method of accounting requires us to calculate contract profit to be recognized in each reporting period for each contract based upon our projections of future outcomes, which include:
	•estimates of the available revenue under the contracts;
	•estimates of the total cost to complete the project;
	•estimates of project schedule and completion date;
•estimates of the extent of progress toward completion; and
•amount of any change orders or claims included in revenue.
Measurements of progress are based on costs incurred to date as a percentage of total estimated costs or output based related to physical progress. At the outset of each contract, we prepare a detailed analysis of our estimated cost to complete the project. Risks related to service delivery, usage, productivity and other factors are considered in the estimation process. We periodically evaluate the estimated costs, claims, change orders and percentage-of-completion at the contract level. The recording of profits and losses on long-term contracts requires an estimate of the total profit or loss over the life of each contract. This estimate requires consideration of total contract value, change orders and claims, less costs incurred and estimated costs to complete. Anticipated losses on contracts are recorded in full in the period in which they become evident. Profits are recorded based upon the total estimated contract profit multiplied by the current estimated percentage complete for the contract.
Earnings per Share
Basic earnings per share for all periods presented equals net income divided by the weighted average number of our shares outstanding during the period including participating securities. Diluted earnings per share is computed by dividing net income by the weighted average number of our shares outstanding during the period including participating securities, adjusted for the dilutive effect of our stock options, restricted shares, performance units and our outstanding warrants.
Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid, are participating securities and are included in the computation of earnings per share following the two-class method. Accordingly, we include our restricted share awards (“RSA”), which contain the right to vote and receive dividends, in the computation of both basic and diluted earnings per share. The following reconciles basic and diluted weighted average shares outstanding:
	Year Ended December 31,
(Shares in millions)	2013	2012	2011
Basic weighted average shares outstanding	772	765	753
Dilutive effect of:
Warrants	—	—	2
Stock options and restricted shares	—	—	5
Diluted weighted average shares outstanding	772	765	760
Our diluted weighted average shares outstanding for the years ended December 31, 2013, 2012 and 2011, exclude potential shares that are anti-dilutive, such as options where the exercise price exceeds the current market price of our stock. In addition, diluted weighted average shares outstanding for the years ended December 31, 2013 and 2012, exclude potential shares for stock options, restricted shares and performance units outstanding as we have net losses for that period as their inclusion would be anti-dilutive. The following table discloses the number of anti-dilutive shares excluded:
	Year Ended December 31,
(Shares in millions)	2013	2012	2011
Anti-dilutive potential shares	5	4	5
New Accounting Pronouncements
In February 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance intended to improve the reporting of reclassifications out of accumulated other comprehensive income. The guidance requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. GAAP to be reclassified in its entirety to net income. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety from accumulated other comprehensive income to net income in the same reporting period, an entity is required to cross-reference other disclosures required under U.S. GAAP that provide additional detail about those amounts. This guidance became effective for us in our second quarter of 2013. Please see Note 14 – Shareholders' Equity, which presents the reclassifications out of Accumulated Other Comprehensive Income.
In July 2013, the FASB issued new guidance intended to clarify the presentation of unrecognized tax benefits. An unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carryforward, with certain exceptions. The unrecognized tax benefit should be presented as a liability and should not be combined with deferred tax assets to the extent that: (1) the deferred tax asset is not available under the tax law of the applicable jurisdiction to settle additional income taxes resulting from disallowance of the tax position, or (2) the entity is not required to use the deferred tax asset under the tax law of the applicable jurisdiction and the entity does not intend to use the deferred tax asset to offset additional taxes that would result from disallowance of the position. This guidance will be effective for us beginning with the first quarter of 2014 and may be adopted prospectively for all unrecognized tax benefits that exist at the effective date or retrospectively. The adoption of this guidance is not expected to have a material impact on our financial position, results of operations or cash flows.

Business_Combinations_and_Disp

Business Combinations and Dispositions	12 Months Ended
	Dec. 31, 2013
Mergers, Acquisitions and Dispositions Disclosures [Abstract]	'
Business Combinations and Dispositions	'
	Business Combinations and Dispositions
	Acquisitions
	We have acquired businesses we feel are important to our long-term strategy. Results of operations for acquisitions are included in the accompanying Consolidated Statements of Operations from the date of acquisition. The balances included in the Consolidated Balance Sheets related to current year acquisitions are based on preliminary information and are subject to change when final asset valuations are obtained and the potential for liabilities has been evaluated. The purchase price for the acquisitions is allocated to the net assets acquired based upon their estimated fair values at the date of acquisition. During the year ended December 31, 2013, we acquired businesses for cash consideration of $8 million, net of cash acquired.
	In May 2012, we acquired a company that designs and produces well completion tools. As purchase consideration, we paid $29 million in cash, issued three million shares valued at approximately $39 million, settled a previously existing note receivable for $16 million and entered into a contingent consideration arrangement valued at approximately $8 million at December 31, 2013 that will be settled in early 2015. This contingent consideration arrangement is dependent on the acquired company’s 2014 revenue and will be marked to market through current earnings in each reporting period prior to settlement. The liability is valued using a Monte Carlo simulation and Level 3 inputs.
	During the year ended December 31, 2012, we also acquired other businesses and equity investments for cash consideration of $144 million, net of cash acquired. We acquired various businesses and equity investments during the year ended 2011 for cash consideration of $158 million, net of cash acquired. In addition, our 2011 acquisitions included the issuance of approximately eight million shares valued at $134 million.
	Dispositions
	During the fourth quarter of the year ended December 31, 2013, we completed the sale of our 38.5% equity interest in Borets International Limited (“Borets”) (formerly Premier Business Solutions, “PBS”) for $400 million, net of settlement items. Borets is an electric submersible pump manufacturer that operates in Russia. The consideration consisted of $359 million in cash and a three-year $30 million promissory note. As part of the sale, it was agreed that any payables or receivables between the parties would be net settled and, as a result, $11 million that we owed to Borets was deducted from the total consideration. We recorded a gain on sale of $18 million.
	During the first half of 2013, we also completed the sale of our industrial screen business for proceeds totaling $137 million. Through our industrial screen operations, we delivered screen technologies used in numerous industries and, as a result, the screen business was not closely aligned with our goals as a leading provider of equipment and services used in the drilling, evaluation, completion, production and intervention of oil and natural gas wells. During the year ended December 31, 2013, we recognized gains totaling $6 million resulting from these industrial screen transactions. The major classes of assets sold in these transactions included $54 million in cash, $36 million of accounts receivable, $37 million of inventory and $93 million of other assets primarily comprised of property, plant and equipment, other intangible assets and goodwill. Liabilities of $69 million were also transferred in the sale, of which $60 million were current liabilities.
	During 2012, we completed the sale of our subsea controls business in exchange for an equity investment, valued at $173 million, in ProServ Group Inc., an entity that is positioned to provide complete subsea solutions to clients (see Note 9 – Equity Investments). We recognized a $28 million gain from the transaction (approximately $25 million net of tax). The major classes of assets sold included $39 million of accounts receivable and other current assets, $38 million of inventories, $5 million of property plant and equipment and $74 million of goodwill. Liabilities of $13 million were also transferred in the sale.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Cash Flow Information	'
	Supplemental Cash Flow Information
	Cash paid for interest and income taxes, net of refunds, was as follows:
		Year Ended December 31,
	(Dollars in millions)	2013		2012		2011
	Interest paid, net of capitalized interest	$	525	$	478	$	461
	Income taxes paid, net of refunds	442		443		291

Percentage_of_Completion_Contr

Percentage of Completion Contracts	12 Months Ended
	Dec. 31, 2013
Contractors [Abstract]	'
Percentage of Completion Contracts	'
	Percentage of Completion Contracts
	During 2013, we recognized estimated project losses of $232 million related to our long-term early production facility construction contracts in Iraq accounted for under the percentage of completion method. Total estimated losses on these projects were $307 million at December 31, 2013. As of December 31, 2013, our percentage of completion project estimates include $36 million of claims revenue and $82 million for liquidated damages that we are contractually obligated to pay as a result of delays in the expected completion of the project. We have a variety of unapproved contract change orders or claims that are not included in our revenues as of December 31, 2013. Amounts representing these contract change orders or claims are included in revenue only when they can be estimated reliably and their realization is reasonably assured.
	During 2012, we recognized losses of $100 million related to a long-term construction contract in Iraq accounted for under the percentage of completion method. As of December 31, 2012, we had claims against our customer of $68 million that were not included in our revenue estimates because they do not meet the criteria for recognition. Additionally, we had accrued $17 million for liquidated damages that we are contractually obligated to pay as a result of delays in the expected completion of the project. In addition, in the quarter ended December 31, 2012, we recognized $63 million in revenue upon revision of project estimates on our projects in Mexico. These amounts were determined to be realizable in the fourth quarter of 2012.

Accounts_Receivable_Factoring

Accounts Receivable Factoring	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Accounts Receivable Factoring	'
	Accounts Receivable Factoring
	Since 2010, we have engaged in a factoring program to sell accounts receivable in Mexico to third party financial institutions. In 2013, we sold $215 million under the program, received cash totaling $204 million and recognized a loss of $3 million on these sales. In 2012, we sold approximately $177 million under the program, received cash totaling $163 million and recognized a loss of $1 million on these sales. In 2011, we sold approximately $65 million under our factoring program, received cash totaling $64 million and recognized a loss of $1 million on these sales. In each year our factoring transactions qualified for sale accounting under the accounting standards and all related proceeds are included as operating cash flows in our Consolidated Statements of Cash Flows.

Inventories_Net

Inventories, Net	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventories, Net	'
	Inventories, Net
	Inventories, net of reserves, by category were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Raw materials, components and supplies	$	386	$	461
	Work in process	130		166
	Finished goods	2,855		3,048
		$	3,371	$	3,675
	Work in process and finished goods inventories include cost of materials, labor and manufacturing overhead. During 2013 we recognized charges for excess and obsolete inventory totaling $62 million. During 2012, we recognized a charge of $30 million to adjust the carrying value of our guar inventory, a component of certain drilling fluids, to the lower of cost or market. During 2012, we also recognized a charge for excess and obsolete inventory of $53 million. These costs are classified in the caption “Cost of Products” within our Consolidated Statements of Operations.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill	'
	Goodwill
	We perform an impairment test for goodwill and indefinite-lived intangible assets annually as of October 1, or more frequently if indicators of potential impairment exist. Our goodwill impairment test involves a comparison of the fair value of each of our reporting units with its carrying amount. The fair value of our reporting units is determined using primarily an income approach. The income approach estimates fair value by discounting each reporting unit’s estimated future cash flows using a weighted-average cost of capital that reflects current market conditions and considers the risk profile of each reporting unit. Our reporting units are components of our operating segments, certain of which are aggregated and include the United States, Canada, Latin America, Europe, Sub-Sahara Africa (“SSA”), Russia, Middle East/North Africa (“MENA”) and Asia Pacific.
	The fair values of all our reporting units were in excess of their carrying value as of our October 1, 2013 annual impairment test. The fair value of our Latin America reporting unit was closest to its carrying value and was 21% in excess of its carrying value at October 1, 2013. The goodwill balance at December 31, 2013 for Latin America was $345 million.
	During the second quarter of 2012, we noted a sustained decline in the market price of our registered shares such that our market capitalization was lower than our total shareholders’ equity for an extended period. Additionally, certain of our reporting units were not performing at the levels previously expected. In response, we considered the associated circumstances to assess whether an event or change had occurred that, more likely than not, reduced the fair value of any of our reporting units below their carrying amount. After considering the relevant circumstances, we concluded that the decline in our market capitalization was a potential indicator of impairment and we prepared the analysis necessary to identify potential impairment through the comparison of reporting unit fair values and carrying amounts. This “step one” analysis indicated that the goodwill attributed to our MENA and SSA reporting units was potentially impaired. Consequently, we performed the “step two” analysis of the goodwill impairment test, comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. The “step two” analysis indicated that the goodwill for both reporting units was fully impaired and we recognized an impairment loss of $589 million in the second quarter of 2012, of which $512 million was attributable to MENA and $77 million to SSA.
	The changes in the carrying amount of goodwill by reportable segment for the two years ended December 31, 2013 and 2012 were as follows:
	(Dollars in millions)	North			MENA/			Europe/			Latin			Total
		America			Asia Pacific			SSA/			America
								Russia
	Balance at December 31, 2011	$	2,272		743			1,024			384			4,423
	Acquisitions	59			—			46			—			105
	Disposals	(2		)	(7		)	(65		)	—			(74		)
	Impairment loss	—			(512		)	(77		)	—			(589		)
	Purchase price and other adjustments	(18		)	—			—			(24		)	(42		)
	Foreign currency translation adjustments	25			2			27			(6		)	48
	Balance at December 31, 2012	2,336			226			955			354			3,871
	Acquisitions	—			—			2			—			2
	Disposals	(23		)	(4		)	(13		)	(1		)	(41		)
	Purchase price and other adjustments	1			—			(3		)	2			—
	Foreign currency translation adjustments	(71		)	(13		)	(29		)	(10		)	(123		)
	Balance at December 31, 2013	$	2,243		$	209		$	912		$	345		$	3,709

Other_Intangible_Assets

Other Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Other Intangible Assets	'
	Other Intangible Assets
	The components of intangible assets were as follows:
		December 31, 2013							December 31, 2012
	(Dollars in millions)	Gross		Accumulated Amortization			Net		Gross		Accumulated			Net
		Carrying							Carrying		Amortization
		Amount							Amount
	Acquired technology	$	417	$	(238	)	$	179	$	423	$	(207	)	$	216
	Licenses	261		(161		)	100		254		(139		)	115
	Patents	271		(129		)	142		266		(113		)	153
	Customer relationships and contracts	329		(163		)	166		353		(148		)	205
	Other	91		(52		)	39		128		(51		)	77
		$	1,369	$	(743	)	$	626	$	1,424	$	(658	)	$	766
	We have trademarks that are considered to have indefinite lives as we have the ability and intent to renew them indefinitely. These trademarks had a carrying value of $12 million and $19 million at December 31, 2013 and 2012, and are included in the Other caption in the table above.
	Additions to intangibles for the years ended December 31, 2013 and 2012 were as follows:
		Year Ended December 31,
	(Dollars in millions)	2013		2012
	Acquired technology	$	1	$	—
	Licenses	3		13
	Patents	5		34
	Customer relationships and contracts	4		100
	Other	2		30
	Total	$	15	$	177
	Amortization expense was $120 million, $122 million and $102 million for the years ended December 31, 2013, 2012 and 2011, respectively. Future estimated amortization expense for the carrying amount of intangible assets as of December 31, 2013 is expected to be as follows (dollars in millions):
	Period	Amount
	2014	$	116
	2015	84
	2016	69
	2017	64
	2018	59

Equity_Investments

Equity Investments	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Equity Investments	'
	Equity Investments
	Our equity investments in unconsolidated affiliates were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Borets (formerly PBS)	$	—	$	356
	Proserv Group Inc.	168		170
	Other equity investments	128		120
		$	296	$	646
	During 2013, we sold our interest in Borets International Limited (“Borets”) (see Note 2 - Business Combinations and Dispositions). At December 31, 2012, we owned 38.5% of Borets. At December 31, 2013 and 2012, we owned 27.2% and 25.7% of Proserv Group Inc., respectively. Equity in earnings of unconsolidated affiliates for the years ended December 31, 2013, 2012 and 2011 totaled $37 million, $51 million and $20 million, respectively.
	In connection with our goodwill impairment test performed in 2012, we prepared an analysis to determine the fair value of our equity investments in less than majority owned entities. Upon completion of this valuation, we determined that the fair value attributable to certain equity investments was significantly below our carrying value for these investments. We assessed these declines in value as other than temporary and recognized an impairment loss of $204 million during the second quarter of 2012.

Shortterm_Borrowings_and_Curre

Short-term Borrowings and Current Portion of Long-term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Short-term Borrowings and Current Portion of Long-term Debt	'
	Short-term Borrowings and Current Portion of Long-term Debt
		December 31,
	(Dollars in millions)	2013			2012
	Commercial paper program	$	292		$	888
	Revolving credit facility	772			—
	364-day term loan facility	300			—
	Other short-term bank loans	229			109
	Total short-term borrowings	1,593			997
	Current portion of long-term debt	73			588
	Short-term borrowings and current portion of long-term debt	$	1,666		$	1,585
	Weighted average interest rate on short-term borrowings outstanding at end of year	1.71		%	1.54		%
	We maintain a $2.25 billion unsecured, revolving credit agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent, scheduled to mature July 13, 2016. The Credit Agreement can be used for a combination of borrowings, support for our $2.25 billion commercial paper program and issuances of letters of credit. At December 31, 2013, our borrowings under our revolving credit facility had a weighted average interest rate of 1.4%. This agreement requires that we maintain a debt-to-total capitalization ratio of less than 60%. We were in compliance with this covenant at December 31, 2013. At December 31, 2013, our borrowings under our commercial paper program had a weighted average interest rate of 1.0%, and there were $42 million in outstanding letters of credit under the Credit Agreement.
	On May 1, 2013, we entered into a $300 million, 364-day term loan facility with a syndicate of banks. The facility was fully drawn on May 1, 2013 and will mature on April 30, 2014. The terms and conditions of the facility are substantially similar to our $2.25 billion revolving credit agreement. At December 31, 2013, our borrowings under our 364-day term loan facility had a weighted average interest rate of 1.4%. The facility is used for general corporate purposes, including the repayment of other credit facility borrowings and the reduction of outstanding commercial paper.
	We have short-term borrowings with various domestic and international institutions pursuant to uncommitted facilities. At December 31, 2013, we had $229 million in short-term borrowings under these arrangements with a weighted average interest rate of 4.1%. In addition, we had $541 million of letters of credit under various uncommitted facilities and $286 million of surety bonds, primarily performance bonds, issued by financial sureties against an indemnification from us at December 31, 2013.
	The carrying value of our short-term borrowings approximates their fair value as of December 31, 2013. A majority of the Current Portion of Long-term Debt at December 31, 2013 is primarily related to payments on our capital leases.

Longterm_Debt

Long-term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-term Debt	'
	Long-term Debt
	We have issued various senior notes, all of which rank equally with our existing and future senior unsecured indebtedness, have semi-annual interest payments and no sinking fund requirements. Our Long-term Debt consisted of the following:
		December 31,
	(Dollars in millions)	2013		2012
	5.15% Senior Notes due 2013	$	—	$	294
	4.95% Senior Notes due 2013	—		250
	5.50% Senior Notes due 2016	353		354
	6.35% Senior Notes due 2017	610		613
	6.00% Senior Notes due 2018	498		497
	9.625% Senior Notes due 2019	1,021		1,025
	5.125% Senior Notes due 2020	798		797
	4.50% Senior Notes due 2022	747		747
	6.50% Senior Notes due 2036	595		595
	6.80% Senior Notes due 2037	298		298
	7.00% Senior Notes due 2038	497		497
	9.875% Senior Notes due 2039	247		247
	6.75% Senior Notes due 2040	596		596
	5.95% Senior Notes due 2042	545		545
	4.82% secured borrowing	102		132
	Capital and other lease obligations	153		118
	Other	74		32
		7,134		7,637
	Less amounts due in one year	73		588
	Long-term debt	$	7,061	$	7,049
	The following is a summary of scheduled Long-term Debt maturities by year (dollars in millions):
	2014	$	73
	2015	66
	2016	410
	2017	673
	2018	512
	Thereafter	5,400
		$	7,134
	On April 4, 2012, we completed a $1.3 billion long-term debt offering comprised of $750 million of 4.5% senior notes due 2022 and $550 million of 5.95% senior notes due 2042. The net proceeds from this offering were used to repay short-term indebtedness under our commercial paper program and for general corporate purposes.
	In August 2012, as a result of the delay in filing our second quarter report on Form 10-Q and potential delay in filing our third quarter report on Form 10-Q, we sought consents from the holders of our senior notes to extend the due date under the senior note indentures for providing our Form 10-Q filings and our 2012 Form 10-K filing to no later than March 31, 2013. We received sufficient consents to apply this extension to all series of our publicly traded senior notes. We offered a cash payment of $2.50 for each $1,000 in principal amount for those note holders who consented to the extension and we paid approximately $18 million to the holders of our senior notes in connection with this consent solicitation, which will be recognized as an increase in interest expense over the remaining terms of the senior notes. We also incurred and expensed in 2012 other costs, including fees and expenses, of $12 million in connection with our debt consent solicitation.
	The weighted average effective interest rate on our Senior Notes during 2013 was 6.2%. The effective rate was determined after giving consideration to the effect of interest rate derivatives accounted for as hedges and the amortization of any premiums or discounts (See Note 13 – Derivative Instruments).

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	Financial Instruments Measured and Recognized at Fair Value
	We estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability. Our valuation techniques require inputs that we categorize using a three level hierarchy, from highest to lowest level of observable inputs. Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 inputs are quoted prices or other market data for similar assets and liabilities in active markets, or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based upon our own judgment and assumptions used to measure assets and liabilities at fair value. Classification of a financial asset or liability within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement. Other than the contingent consideration discussed in Note 2 and our derivative instruments discussed in Note 13, we had no assets or liabilities measured and recognized at fair value on a recurring basis at December 31, 2013 and 2012.
	Fair Value of Other Financial Instruments
	Our other financial instruments include short-term borrowings and long-term debt. The carrying value of our commercial paper and other short-term borrowings approximates their fair value due to the short-term duration of the associated interest rate periods. These short-term borrowings are classified as Level 2 in the fair value hierarchy.
	The fair value of our long-term debt fluctuates with changes in applicable interest rates. Fair value will exceed carrying value when the current market interest rate is lower than the interest rate at which the debt was originally issued. The fair value of our Long-term Debt is a measure of its current value under present market conditions and is established based on observable inputs in non-active markets. The fair value of our Long-term Debt is classified as Level 2 in the fair value hierarchy.
	The fair value and carrying value of our senior notes were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Fair value	$	7,580	$	8,368
	Carrying value	6,805		7,355

Derivative_Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	Derivative Instruments
	We are exposed to market risk from changes in foreign currency and changes in interest rates. From time to time, we may enter into derivative financial instrument transactions to manage or reduce our market risk. We manage our debt portfolio to achieve an overall desired position of fixed and floating rates, and we may employ interest rate swaps as a tool to achieve that goal. The major risks from interest rate derivatives include changes in the interest rates affecting the fair value of such instruments, potential increases in interest expense due to market increases in floating interest rates and the creditworthiness of the counterparties in such transactions. In light of events in the global credit markets and the potential impact of these events on the liquidity of the banking industry, we continue to monitor the creditworthiness of our counterparties, which are multinational commercial banks. The fair values of all our outstanding derivative instruments are determined using a model with Level 2 inputs including quoted market prices for contracts with similar terms and maturity dates.
	Fair Value Hedges
	We may use interest rate swaps to help mitigate exposures related to changes in the fair values of the associated debt. Amounts paid or received upon termination of interest rate swaps accounted for as fair value hedges represent the fair value of the agreements at the time of termination and are amortized as a reduction, in the case of gains, or as an increase, in the case of losses, of interest expense over the remaining term of the debt.
	In July 2011, we entered into interest rate swap agreements to pay a variable interest rate and receive a fixed interest rate with an aggregate notional amount of $300 million. These swaps were designated as fair value hedges of our 6.35% Senior Notes. In June 2012, these swaps were terminated. As a result of these terminations, we received a cash settlement of $18 million. The gain associated with these interest rate swap terminations was deferred and is being amortized over the remaining term of our 6.35% senior notes as a reduction in interest expense.
	As of December 31, 2013 and 2012, we had net unamortized gains of $42 million and $52 million, respectively, associated with interest rate swap terminations.
	Cash Flow Hedges
	In 2008, we entered into interest rate derivative instruments to hedge projected exposures to interest rates in anticipation of a debt offering. These hedges were terminated at the time of the issuance of the debt and the associated loss on these hedges is being amortized from Accumulated Other Comprehensive Income (Loss) into interest expense over the remaining term of the debt. As of December 31, 2013 and 2012, we had net unamortized losses of $11 million for both years associated with our cash flow hedge terminations.
	Other Derivative Instruments
	As of December 31, 2013 and 2012, we had foreign currency forward contracts with aggregate notional amounts of $635 million and $990 million, respectively. These contracts were entered into to hedge exposure to currency fluctuations in various foreign currencies. The total estimated fair value of these contracts and amounts receivable or owed associated with closed contracts at December 31, 2013 and 2012 resulted in a net liability of $1 million and $15 million, respectively. These derivative instruments were not designated as hedges, and the changes in fair value of the contracts are recorded each period in current earnings in the line captioned “Other, Net” on the accompanying Consolidated Statements of Operations.
	We have cross-currency swaps between the U.S. dollar and Canadian dollar to hedge certain exposures to the Canadian dollar. At December 31, 2013 and 2012, we had notional amounts outstanding of $168 million for each year. The total estimated fair value of these contracts at December 31, 2013 and 2012 resulted in a liability of $21 million and $34 million, respectively. These derivative instruments were not designated as hedges, and the changes in fair value of the contracts are recorded in current earnings each period in the line captioned “Other, Net” on the accompanying Consolidated Statements of Operations.
	The fair values of outstanding derivative instruments are summarized as follows:
		December 31,
	(Dollars in millions)	2013			2012			Classifications
	Derivative assets not designated as hedges:
	Foreign currency forward contracts	$	5		$	5		Other Current Assets
	Derivative liabilities not designated as hedges:
	Foreign currency forward contracts	(6		)	(20		)	Other Current Liabilities
	Cross-currency swap contracts	(21		)	(34		)	Other Liabilities

Shareholders_Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Shareholders' Equity	'
	Shareholders’ Equity
	Changes in our Issued and Treasury shares during the years ended December 31, 2013, 2012 and 2011 were as follows:
	(Shares in millions)	Issued			Treasury
	Balance at December 31, 2010	758			(23	)
	Shares issued for acquisitions	5			3
	Equity awards granted, vested and exercised	—			4
	Shares issued for warrants	2			—
	Balance at December 31, 2011	765			(16	)
	Shares issued for acquisitions	—			3
	Equity awards granted, vested and exercised	—			4
	Shares issued for warrants	5			—
	Shares issued for internal restructuring	70			(70	)
	Balance at December 31, 2012	840			(79	)
	Equity awards granted, vested and exercised	—			6
	Balance at December 31, 2013	840			(73	)
	Effective May 23, 2012, we issued 70 million shares to one of our subsidiaries in an internal restructuring of certain of our assets.
	Authorized Shares
	At December 31, 2013, we were authorized to issue 840 million registered shares and conditionally authorized to issue 372 million registered shares.
	Warrants
	At December 31, 2010, warrants were outstanding to purchase up to 12.9 million of our shares at a price of $15.00 per share. On March 4, 2011, 4.3 million of these warrants were exercised through net share settlement resulting in the issuance of 1.7 million shares. At December 31, 2011, 8.6 million of these warrants were outstanding and exercisable until February 28, 2012. On February 28, 2012, 4.3 million of these warrants were exercised through physical delivery of shares in exchange for $65 million and the remaining 4.3 million of these warrants were exercised through net share settlement resulting in the issuance of 494 thousand shares.
	The following table presents the changes in our accumulated other comprehensive income by component for the year ended December 31, 2013:
	(Dollars in millions)	Currency Translation Adjustment				Defined Benefit Pension			Deferred Loss on Derivatives			Total
	Balance at January 1, 2013	213				(40		)	(10		)	163
	Other comprehensive loss before reclassifications	(316		)		—			—			(316		)
	Reclassifications	(37		)		2			1			(34		)
	Net activity	(353		)		2			1			(350		)
	Balance at December 31, 2013	$	(140	)		$	(38	)	$	(9	)	$	(187	)
	The 2013 reclassification from the currency translation adjustment component of other comprehensive income includes $30 million from the sale of our industrial screen business. This amount was recognized in the gain on sale of business line in our Consolidated Statement of Operations for the year ended December 31, 2013.

ShareBased_Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Compensation	'
	Share-Based Compensation
	Incentive Plans
	Our incentive plans permit the grant of options, stock appreciation rights, RSA’s, restricted share units (“RSU”), performance share awards, performance unit awards, other share-based awards and cash-based awards to any employee, non-employee directors and other individual service providers or any affiliate.
	The provisions of each award vary based on the type of award granted and are determined by the Compensation Committee of our Board of Directors. Those awards, such as stock options that are based on a specific contractual term, will be granted with a term not to exceed 10 years. Upon grant of an RSA, the recipient has the rights of a shareholder, including but not limited to the right to vote such shares and the right to receive any dividends paid on such shares. Recipients of RSU awards do not have the rights of a shareholder until such date as the shares are issued or transferred to the recipient. As of December 31, 2013, approximately 16.7 million shares were available for grant under our incentive plans.
	Share-Based Compensation Expense
	We recognized the following employee share-based compensation expense during each of the years ended December 31, 2013, 2012 and 2011:
		Year Ended December 31,
	(Dollars in millions)	2013				2012			2011
	Share-based compensation	$	66			$	76		$	87
	Related tax benefit	11				27			30
	Options
	Stock options were granted with an exercise price equal to or greater than the fair market value of our shares as of the date of grant. We used the Black-Scholes option pricing model to determine the fair value of stock options awarded. The estimated fair value of our stock options was expensed over their vesting period, which was generally one to four years. There were no stock options granted during 2013, 2012 or 2011. The intrinsic value of stock options exercised during 2013, 2012 and 2011 was $12 million, $4 million and $10 million, respectively. All options were fully vested as of December 31, 2012.
	A summary of option activity for the year ended December 31, 2013, is presented below:
		Options			Weighted			Weighted		Aggregate
					Average Exercise			Average		Intrinsic
					Price			Remaining		Value
								Term
		(In thousands)								(In thousands)
	Outstanding at December 31, 2012	10,403			$	9.21		2.54 years		$	31,717
	Granted	—			—
	Exercised	(2,447	)		8.89
	Forfeited	—			—
	Outstanding and Vested at December 31, 2013	7,956			9.31			2.01 years		54,775
	Restricted Share Awards and Restricted Share Units
	RSAs and RSUs vest based on continued employment, generally over a two to five-year period. The fair value of RSAs and RSUs is determined based on the closing price of our shares on the date of grant. The total fair value, less assumed forfeitures, is expensed over the vesting period. The weighted-average grant date fair value of RSAs and RSUs granted during the years ended December 31, 2013, 2012 and 2011 was $13.49, $13.30 and $22.41, respectively. The total fair value of RSAs and RSUs vested during the years ended December 31, 2013, 2012 and 2011 was $61 million, $78 million and $86 million, respectively. As of December 31, 2013, there was $67 million of unrecognized compensation expense related to unvested RSAs and RSUs, which is expected to be recognized over a weighted average period of two years. A summary of RSA and RSU activity for the year ended December 31, 2013 is presented below:
			RSA			Weighted			RSU			Weighted
						Average Grant Date						Average
						Fair Value						Grant Date
												Fair Value
			(In thousands)						(In thousands)
	Non-Vested at December 31, 2012		2,402			$	18.93		3,051			$	18.63
	Granted		2,397			14.04			2,305			12.93
	Vested		(1,178	)		21.44			(1,870	)		19.2
	Forfeited		(410	)		15.4			(349	)		17.23
	Non-Vested at December 31, 2013		3,211			14.8			3,137			14.26
	Performance Units
	The performance units we have issued typically vest at the end of a three-year period assuming continued employment and the Company’s achievement of certain market-based performance goals. Performance units expire unvested when market conditions are not met. The grant date fair value of the performance units we have granted was determined through use of the Monte Carlo simulation method. The assumptions used in the Monte Carlo simulation during the year ended December 31, 2013, included a risk-free rate of 0.4%, volatility of 42.1% and a zero dividend yield. The weighted-average grant date fair value of the performance units we granted during the years ended December 31, 2013, 2012 and 2011 was $10.81, $21.32 and $29.64, respectively. The total fair value of performance units vested during the years ended December 31, 2013 and 2012 was $8 million and $1 million, respectively. For the year ended December 31, 2013, the 1.3 million shares of stock issued for the performance units were related to the departure of certain former executive officers. No performance units vested in 2011 as that was the first year we granted performance units. As of December 31, 2013, there was $12 million of unrecognized compensation expense related to performance units, which is expected to be recognized over a weighted average period of one year.
	A summary of performance unit activity for the years ended December 31, 2013 is presented below:
		Performance Units			Weighted Average Grant Date Fair Value
		(In thousands)
	Non-vested at December 31, 2012	1,402			$	23.14
	Granted	1,905			10.81
	Vested	(700	)		12.04
	Forfeited	(696	)		20.03
	Non-vested at December 31, 2013	1,911			16.05

Retirement_and_Employee_Benefi

Retirement and Employee Benefit Plans	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Retirement and Employee Benefit Plans	'
	Retirement and Employee Benefit Plans
	We have defined contribution plans covering certain employees. Contribution expenses related to these plans totaled $73 million, $62 million and $50 million in 2013, 2012 and 2011, respectively.
	We have defined benefit pension and other post-retirement benefit plans covering certain U.S. and international employees.  Plan benefits are generally based on factors such as age, compensation levels and years of service. Net periodic benefit cost related to these plans totaled $20 million, $16 million and $14 million in 2013, 2012 and 2011, respectively. The projected benefit obligations on a consolidated basis were $297 million and $275 million as of December 31, 2013 and 2012, respectively. The fair values of plan assets on a consolidated basis (determined primarily using Level 2 inputs) were $151 million and $130 million as of December 31, 2013 and 2012, respectively. The net underfunded obligation was substantially all recorded within Other Noncurrent Liabilities at each balance sheet date. Additionally, consolidated amounts in accumulated other comprehensive loss that have not yet been recognized as components of net periodic benefit cost were $52 million and $55 million as of December 31, 2013 and 2012, respectively.
	The weighted average assumption rates used for benefit obligations were as follows:
		Year Ended December 31,
		2013	2012
	Discount rate:
	United States plans	1.00% - 4.75%	1.00% - 4.00%
	International plans	3.50% - 7.00%	1.36% - 7.00%
	Rate of compensation increase:
	United States plans	—	—
	International plans	3.00% - 4.50%	2.00% - 4.10%
	During 2013 and 2012, we contributed $12 million and $11 million, respectively, to our defined benefit pension and other post-retirement benefit plans. In 2014, we expect to contribute approximately $12 million to those plans.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	We are exempt from Swiss cantonal and communal tax on income derived outside Switzerland, and we are also granted participation relief from Swiss federal tax for qualifying dividend income and capital gains related to the sale of qualifying investments in subsidiaries. We expect that the participation relief will result in a full exemption of participation income from Swiss federal income tax.
	We provide for income taxes based on the laws and rates in effect in the countries in which operations are conducted, or in which we or our subsidiaries are considered resident for income tax purposes. The relationship between our pre-tax income or loss and our income tax provision or benefit varies from period to period as a result of various factors which include changes in total pre-tax income or loss, the jurisdictions in which our income is earned, the tax laws in those jurisdictions and in our operating structure.
	Our income tax benefit (provision) from continuing operations consisted of the following:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Total current provision	$	(177	)	$	(475	)	$	(421	)
	Total deferred benefit (provision)	33			13			(121		)
		$	(144	)	$	(462	)	$	(542	)
	The difference between the income tax provision at the Swiss federal income tax rate and the income tax provision attributable to Income Before Income Taxes for each of the three years ended December 31, 2013, 2012 and 2011 is analyzed below:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Swiss federal income tax rate at 7.83%	$	13		$	23		$	(59	)
	Tax on earnings subject to rates different than the Swiss federal income tax rate	89			(341		)	(377		)
	Change in valuation allowance	(264		)	(108		)	(29		)
	Change in uncertain tax positions	18			(36		)	(77		)
		$	(144	)	$	(462	)	$	(542	)
	In 2013, our income before tax includes a $153 million charge for the settlement of the United Nations oil-for-food program governing sales of goods into Iraq and Foreign Corrupt Practices Act (“FCPA”) matters, a $299 million loss on certain legacy projects, $98 million of bad debt expense, which includes a receivable impairment charge in Venezuela, and a $100 million loss due to the devaluation of the Venezuelan bolivar, all with no or little tax benefit. Our 2013 tax provision includes certain discrete tax benefits primarily due to tax planning activities, decreases in reserves for uncertain tax positions due to statute of limitation expiration and audit closures and the enactment of the American Taxpayer Relief Act, which decreased our effective tax rate for the period.
	In 2012, our results include a $589 million goodwill impairment charge, substantially all of which was non-deductible, a $204 million equity method impairment charge and a $100 million accrual for a loss contingency, both of which are fully non-deductible. In 2011, we recorded tax expense of $20 million related to the redemption of equity in one of our U.S. subsidiaries. These amounts are included in tax on earnings subject to rates different than the Swiss federal income tax rate.
	Deferred tax assets and liabilities are recognized for the estimated future tax effects of temporary differences between the tax basis of an asset or liability and its reported amount in the financial statements. The measurement of deferred tax assets and liabilities is based on enacted tax laws and rates currently in effect in each of the jurisdictions in which we have operations. Deferred tax assets and liabilities are classified as current or non-current according to the classification of the related asset or liability for financial reporting.
	The components of the net deferred tax asset (liability) attributable to continuing operations were as follows:
		December 31,
	(Dollars stated in millions)	2013			2012
	Net operating losses carryforwards	$	647		$	396
	Accrued liabilities and reserves	239			229
	Tax credit carryforwards	115			117
	Employee benefits	54			61
	Inventory	58			61
	Other	80			112
	Valuation allowance	(571		)	(317		)
	Total deferred tax assets	622			659
	Deferred tax liabilities:
	Property, plant and equipment	(478		)	(501		)
	Intangible assets	(238		)	(245		)
	Deferred Income	(6		)	(27		)
	Other	(20		)	(32		)
	Total deferred tax liabilities	(742		)	(805		)
	Net deferred tax assets (liabilities)	$	(120	)	$	(146	)
	The overall increase in the valuation allowance in both 2013 and 2012 is primarily attributable to the establishment of a valuation allowance against current year net operating losses ("NOLs") and tax credits in various jurisdictions. Our results in 2013 and 2012 include significant operating losses in Iraq upon which we recorded a valuation allowance of $134 million and $72 million, respectively.
	Deferred income taxes generally have not been recognized on the cumulative undistributed earnings of our non-Swiss subsidiaries because they are considered to be indefinitely reinvested or they can be distributed on a tax free basis. Distribution of these earnings in the form of dividends or otherwise may result in a combination of income and withholding taxes payable in various countries. As of December 31, 2013, the cumulative undistributed earnings of our non-Swiss subsidiaries that are considered indefinitely reinvested and may be subject to tax if distributed amount to approximately $1.7 billion. Due to complexities in the tax laws and the manner of repatriation, it is not practicable to estimate the unrecognized amount of deferred income taxes and the related dividend withholding taxes associated with these undistributed earnings.
	At December 31, 2013, we had approximately $2.7 billion of NOLs in various jurisdictions, $459 million of which were generated by certain U.S. subsidiaries. Loss carryforwards, if not utilized, will mostly expire for U.S. subsidiaries in 2031, 2032, and 2033 and at various dates from 2015 through 2033 for non-U.S. subsidiaries. At December 31, 2013, we had $115 million of tax credit carryovers, of which $97 million is for U.S. subsidiaries. The U.S. tax credits primarily consist of $25 million of research and development tax credit carryforwards which expire from 2018 through 2033, and $72 million of foreign tax credit carryforwards which expire from 2014 through 2021.
	A tabular reconciliation of the total amounts of uncertain tax positions at the beginning and end of the period is as follows:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Balance at beginning of year	$	296		$	292		$	237
	Additions as a result of tax positions taken during a prior period	64			8			7
	Reductions as a result of tax positions taken during a prior period	(12		)	(1		)	(8		)
	Additions as a result of tax positions taken during the current period	31			29			65
	Reductions relating to settlements with taxing authorities	(60		)	(14		)	(3		)
	Reductions as a result of a lapse of the applicable statute of limitations	(19		)	(19		)	(2		)
	Foreign exchange effects	(11		)	1			(4		)
	Balance at end of year	$	289		$	296		$	292
	Substantially all of the uncertain tax positions, if recognized in future periods, would impact our effective tax rate. To the extent penalties and interest would be assessed on any underpayment of income tax, such amounts have been accrued and classified as a component of income tax expense and other non-current liabilities in the financial statements in accordance with our accounting policy. We recorded a benefit of $21 million, and expenses of $21 million and $20 million of interest and penalties for the years ended December 31, 2013, 2012 and 2011, respectively. The amounts in the table above exclude accrued interest and penalties of $121 million, $142 million and $121 million at December 31, 2013, 2012 and 2011, respectively, which are included in other liabilities.
	We are subject to income tax in many of the over 100 countries where we operate. As of December 31, 2013, the following table summarizes the tax years that remain subject to examination for the major jurisdictions in which we operate:
	Canada	2009 - 2013
	Mexico	2007 - 2013
	Russia	2011 - 2013
	Switzerland	2009 - 2013
	United States	2007 - 2013
	Venezuela	2008 - 2013
	We anticipate a reduction in the balance of uncertain tax positions by up to $36 million in the next twelve months due to expiration of statutes of limitations, settlements and/or conclusions of tax examinations.

Disputes_Litigation_and_Contin

Disputes, Litigation and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Disputes, Litigation and Contingencies	'
	Disputes, Litigation and Contingencies
	U.S. Government and Internal Investigations
	On January 17, 2014, the U.S. District Court for the Southern District of Texas approved the settlement agreements between us and certain of our subsidiaries and the DOJ. On November 26, 2013, we announced that we and our subsidiaries also entered into settlement agreements with the U.S. Departments of Treasury and Commerce and with the SEC, which the U.S. District Court for the Southern District of Texas entered on December 20, 2013. These agreements collectively resolved investigations of prior alleged violations by us and certain of our subsidiaries relating to certain trade sanctions laws, participation in the United Nations oil-for-food program governing sales of goods into Iraq, and non-compliance with the Foreign Corrupt Practices Act.
	Approximately $66 million of the $253 million to be paid by us and our subsidiaries under the settlement agreements was paid in January 2014 and the remaining $187 million was paid pursuant to the terms of the settlement agreements in February of 2014. These agreements include a requirement to retain, for a period of at least 18 months, an independent monitor responsible to assess our compliance with the terms of the agreement so as to address and reduce the risk of recurrence of alleged misconduct, after which we would continue to evaluate our own compliance program and make periodic reports to the DOJ and SEC and maintain agreed compliance monitoring and reporting systems, all of which is costly to us. These agreements also require us to retain an independent third party to retroactively audit our compliance with U.S. export control laws during the years 2012, 2013 and 2014.
	During the quarter ended June 30, 2012, the negotiations related to the trade sanctions matter progressed to a point where we recognized a liability for a loss contingency that we believed was probable and for which a reasonable estimate could be made. We estimated that the amount of this loss was $100 million and we recognized a loss contingency of this amount in the quarter ended June 30, 2012. During the quarter ended June 30, 2013, the negotiations related to the United Nations oil-for-food program governing sales of goods into Iraq and FCPA matters progressed to a point where we recognized a liability for a loss contingency that we believed was probable and for which a reasonable estimate could be made. We estimated the amount of this loss at $153 million and recognized a loss contingency equal to such amount in the quarter ended June 30, 2013.
	The SEC and DOJ are also investigating the circumstances surrounding the material weakness in our internal controls over financial reporting for income taxes that was disclosed in a notification of late filing on Form 12b-25 filed on March 1, 2011 and in current reports on Form 8-K filed on February 21, 2012 and on July 24, 2012 and the subsequent restatements of our historical financial statements. We are cooperating fully with these investigations. We are unable to predict the outcome of these matters due to the inherent uncertainties presented by such investigations, and we are unable to predict potential outcomes or estimate the range of potential loss contingencies, if any. The government, generally, has a broad range of civil and criminal penalties available for these types of matters under applicable law and regulation, including injunctive relief, fines, penalties and modifications to business practices, some of which, if imposed on us, could be material to our business, financial condition or results of operations. In September 2013, we also received the final decision of the SIX Swiss Exchange Sanction Commission regarding its investigation for similar internal controls and restatement matters. The decision resulted in a fine of $270,000 plus costs. We do not plan to appeal this decision.
	Shareholder Litigation
	In 2010, three shareholder derivative actions were filed, purportedly on behalf of the Company, asserting breach of duty and other claims against certain current and former officers and directors of the Company related to the United Nations oil-for-food program governing sales of goods into Iraq, FCPA and trade sanctions related to the U.S. government investigations disclosed above and in our SEC filings since 2007. Those shareholder derivative cases are pending in the Harris County, Texas, civil court and are captioned Neff v. Brady, et al., No. 201040764, Hess v. Duroc-Danner, et al., No. 201040765, and Rosner v. Brady, et al., No. 201047343.
	In March 2011, a shareholder derivative action, Iron Workers Mid-South Pension Fund v. Duroc-Danner, et al., No. 201119822, was filed in Harris County, Texas, civil court purportedly on behalf of the Company against certain current and former officers and directors, alleging breaches of duty related to the material weakness and restatement announcements. In February 2012, a second shareholder derivative action, Wandel v. Duroc-Danner, et al., No. 1:12-cv-01305-LAK (SDNY), was filed in federal court in the Southern District of New York. In March 2012, a purported securities class action captioned Freedman v. Weatherford International Ltd., et al., No. 1:12-cv-02121-LAK (SDNY) was filed in the Southern District of New York against us and certain current and former officers. That case alleges violation of the federal securities laws related to the restatement of our historical financial statements announced on February 21, 2012, and later added claims related to the announcement of a subsequent restatement on July 24, 2012.
	We cannot predict the outcome of these cases including the amount of any possible loss. If one or more negative outcomes were to occur relative to these cases, the aggregate impact to our financial condition could be material.
	In March 2011, a purported shareholder class action captioned Dobina v. Weatherford International Ltd., et al., No. 1:11-cv-01646-LAK (SDNY), was filed in the U.S. District Court for the Southern District of New York, following our announcement on March 1, 2011 of a material weakness in our internal controls over financial reporting for income taxes, and restatement of our historical financial statements (the “2011 Class Action”). The associated lawsuit alleged violation of the federal securities laws by us and certain current and former officers. During the three months ended December 31, 2013, we entered into negotiations to settle the 2011 Class Action. As a result of these negotiations, settlement became probable and a settlement agreement was signed on January 29, 2014. The settlement agreement requires payments totaling approximately $53 million, which we expect to be entirely recoverable from insurance. The settlement arrangement must be submitted to the court for final approval. See “Notes to Consolidated Financial Statements – Note 21– Subsequent Events” for additional information regarding the settlement of the “Shareholder Litigation” matters.
	Other Disputes
	A former Senior Vice President and General Counsel (the “Executive”) left the Company in June 2009. The Executive had employment agreements with us that terminated upon his departure. There is currently a dispute between the Executive and us as to the amount of compensation we are obligated to pay under these employment agreements based on the Executive’s separation. This dispute has not resulted in a lawsuit being filed. Since 2009, it has been our belief that an unfavorable outcome regarding this dispute is not probable and, as such, we had not accrued for the Executive’s claimed severance and other benefits. However, in the three months ended December 31, 2013 we concluded that we would attempt to negotiate a settlement. As a result, we believe that settlement has become probable and we have accrued our estimate of the probable loss.
	Additionally, we are aware of various disputes and potential claims and are a party in various litigation involving claims against us, some of which are covered by insurance. For claims, disputes and pending litigation in which we believe a negative outcome is probable and a loss can be reasonably estimated, we have recorded a liability for the expected loss. These liabilities are immaterial to our financial condition and results of operations. In addition we have certain claims, disputes and pending litigation regarding which we do not believe a negative outcome is probable or for which we can only estimate a range of liability. It is possible, however, an unexpected judgment could be rendered against us, or we could decide to resolve a case or cases, that would result in liability that could be uninsured and beyond the amounts we currently have reserved and in some cases those losses could be material. If one or more negative outcomes were to occur relative to these matters, the aggregate impact to our financial condition could be material.

Commitments

Commitments	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments	'
	Commitments
	We are committed under various operating lease agreements primarily related to office space and equipment. Generally, these leases include renewal provisions and rental payments, which may be adjusted for taxes, insurance and maintenance related to the property. Future minimum rental commitments under noncancellable operating leases are as follows (dollars in millions):
	2014	$	277
	2015	239
	2016	185
	2017	137
	2018	109
	Thereafter	270
		$	1,217
	Total rent expense incurred under operating leases was approximately $581 million, $458 million and $328 million for the years ended December 31, 2013, 2012 and 2011, respectively. The future rental commitment table above does not include leases that are short-term in nature or can be cancelled with notice of less than three months.

Segment_Information

Segment Information	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	Segment Information
	Reporting Segments
	Our operational performance is reviewed and managed on a geographic basis. We report the following regions, which are our operating segments, as separate, distinct reporting segments: North America; MENA/Asia Pacific; Europe/SSA/Russia; and Latin America. Financial information by segment is summarized below. Revenues are attributable to countries based on the ultimate destination of the sale of products or performance of services. The accounting policies of the segments are the same as those described in the summary of significant accounting policies.
		Year Ended December 31, 2013
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations (a)				Amortization				2013
	North America	$	6,390		$	820			$	424	$	434	$	7,720
	MENA/Asia Pacific	3,344			(96		)		396		526		5,328
	Europe/SSA/Russia	2,693			288				286		305		4,346
	Latin America (b)	2,836			306				276		247		4,247
		15,263			1,318				1,382		1,512		21,641
	Corporate and Research and Development	—			(466		)		20		63		336
	U.S. Government Investigation Loss	—			(153		)		—		—		—
	Other Items (c)	—			(176		)		—		—		—
	Total	$	15,263		$	523			$	1,402	$	1,575	$	21,977
		Year Ended December 31, 2012
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations (d)				Amortization				2012
	North America	$	6,824		$	1,078			$	412	$	744	$	8,223
	MENA/Asia Pacific	2,795			34				352		657		5,108
	Europe/SSA/Russia	2,519			315				255		341		4,418
	Latin America	3,077			395				238		384		4,348
		15,215			1,822				1,257		2,126		22,097
	Corporate and Research and Development	—			(453		)		25		51		698
	Goodwill and Equity Investment Impairment	—			(793		)		—		—		—
	U.S. Government Investigation Loss	—			(100		)		—		—		—
	Other Items (e)	—			(178		)		—		—		—
	Total	$	15,215		$	298			$	1,282	$	2,177	$	22,795
		Year Ended December 31, 2011
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations				Amortization				2011
	North America	$	6,023		$	1,259			$	357	$	416	$	7,672
	MENA/Asia Pacific (f)	2,441			25				328		504		5,264
	Europe/SSA/Russia	2,298			287				233		226		3,963
	Latin America	2,226			254				198		329		3,517
		12,988			1,825				1,116		1,475		20,416
	Corporate and Research and Development	—			(422		)		20		49		635
	Other Items (g)	—			(96		)		—		—
	Total	$	12,988		$	1,307			$	1,136	$	1,524	$	21,051
	(a)	For the year ended December 31, 2013, we recognized a charge for bad debt expense of $98 million attributable to our reporting segments as follows: $59 million in Latin America, $27 million in MENA/Asia Pacific, $10 million for Europe/SSA/Russia, and $2 million in North America. See footnote (b) below for additional details for the bad debt expense charge in Latin America of $59 million. During 2013, we recognized a charge for excess and obsolete inventory of $62 million attributable to each reporting segment as follows: $35 million in North America, $7 million in MENA/Asia Pacific, $13 million in Europe/SSA/Russia and $7 million in Latin America.
	(b)	On December 17, 2013, we accepted bonds with a face value of $127 million from PDVSA in full settlement of $127 million in trade receivables. Upon receipt, we immediately sold these bonds in a series of transactions recognizing a loss of $58 million.
	(c)	Other items for 2013 include $67 million of professional fees and expenses for U.S. government investigations and the remediation of our material weakness related to income taxes, $94 million of severance and $15 million of other items, which include gains totaling $24 million primarily related to the sale of our 38.5% equity interest in Borets as well as our industrial screen business.
	(d)	During 2012, we recognized a charge for excess and obsolete inventory of $53 million attributable to each reporting segment as follows: $21 million in North America, $16 million in MENA/Asia Pacific, $11 million in Europe/SSA/Russia and $5 million in Latin America. We also recognized a charge of $30 million to adjust the carrying value of our guar inventory, a component of certain drilling fluids, to the lower of cost or market, all of which was attributable to the North America reporting segment.
	(e)	Other Items for 2012 include income tax restatement and material weakness remediation expenses of $103 million, $13 million of costs incurred in connection with U.S. government investigations, $11 million of non-recurring fees and expenses associated with our 2012 debt consent solicitation and severance, exit and other charges of $79 million, offset by a $28 million gain related to the sale of our subsea controls business.
	(f)	In early 2011, our operations in Libya were disrupted by civil unrest. Due to the hostilities, we were unable to physically verify the existence or condition of the majority of our assets in country for most of 2011 and the information available to us about these assets evolved during the year. Additionally, due to international sanctions against all entities affiliated with the Libyan government, we were unable to pursue collections of accounts receivable from a significant portion of our Libyan customers. In the fourth quarter, hostilities subsided and limited company personnel were able to re-enter the country. Additionally, we were able to engage in discussions with our customers. Following an examination of our Libyan assets and evaluation of our accounts receivable from Libyan customers, we recognized an expense of $59 million primarily to establish a reserve for receivables, machinery and equipment and inventory in Libya.
	(g)	Other Items for 2011 includes income tax restatement and material weakness remediation expenses of $22 million, $10 million of costs incurred in connection with U.S. government investigations related to Foreign Corrupt Practices Act and United Nations oil-for-food program governing sales of goods into Iraq matters, $9 million associated with the termination of a corporate consulting contract, and severance, exit and other charges of $55 million.
	Products and Services
	We are a diversified international energy service and manufacturing company that provides a variety of services and equipment to the exploration, production and transmission sectors of the oil and natural gas industry. The composition of our consolidated revenues by product service line group is as follows:
		Year Ended December 31,
		2013		2012			2011
	Formation Evaluation and Well Construction	61	%	56	%		57	%
	Completion and Production	39		44			43
	Total	100	%	100	%		100	%
	Geographic Areas
	Financial information by geographic area for each of the three years ended December 31, 2013, is summarized below. Revenues from customers and long-lived assets in Switzerland were insignificant in each of the years presented. Long-lived assets exclude goodwill and intangible assets as well as deferred tax assets of $33 million, $59 million and $145 million at December 31, 2013, 2012 and 2011, respectively.
		Revenues from Unaffiliated Customers									Long-lived Assets
	(Dollars in millions)	2013			2012				2011		2013		2012		2011
	United States	$	5,146		$	5,465			$	4,714	$	2,272	$	2,524	$	2,353
	Canada	1,243			1,359				1,309		438		471		435
	Mexico	959			1,274				789		226		231		222
Other Countries	7,915			7,117				6,176		5,899		5,845		5,041
	$	15,263		$	15,215			$	12,988	$	8,835	$	9,071	$	8,051

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	U.S. Government and Internal Investigations
	On January 17, 2014, the U.S. District Court for the Southern District of Texas approved the settlement agreements between us and certain of our subsidiaries and the U.S. Department of Justice to resolve investigations of prior alleged violations by us and certain of our subsidiaries relating to certain trade sanctions laws, participation in the United Nations oil-for-food program governing sales of goods into Iraq, and non-compliance with the Foreign Corrupt Practices Act. In 2014 we paid approximately $253 million under the settlement agreements, of which $66 million was paid in January 2014 and the remaining $187 million was paid pursuant to the terms of the settlement agreements in January and February of 2014 by us and our subsidiaries.
	Shareholder Litigation
	On January 29, 2014, we, together with certain current and former officers, reached agreement to resolve the Dobina lawsuit discussed above. Pursuant to the settlement we will pay approximately $53 million, all of which is recoverable from insurance, in exchange for dismissal with prejudice of the litigation and the unconditional release of all claims, known or unknown, that settlement class members brought or could have brought against us and individual defendants related to the facts and allegations in the litigation.

Consolidating_Financial_Statem

Consolidating Financial Statements	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Consolidating Financial Statements	'
	Consolidating Financial Statements
	Weatherford Switzerland is the ultimate parent of the Weatherford group and guarantees the obligations of Weatherford International Ltd., a Bermuda exempted company (“Weatherford Bermuda”), and Weatherford International, LLC, a Delaware limited liability company (“Weatherford Delaware”), noted below.
	The following obligations of Weatherford Delaware were guaranteed by Weatherford Bermuda at December 31, 2013, 2012 and 2011: (1) 6.35% senior notes and (2) 6.80% senior notes. In addition to these obligations, the 5.95% senior notes of Weatherford Delaware were guaranteed by Weatherford Bermuda at December 31, 2011.
	The following obligations of Weatherford Bermuda were guaranteed by Weatherford Delaware at December 31, 2013, 2012 and 2011: (1) revolving credit facility, (2) 5.50% senior notes, (3) 6.50% senior notes, (4) 6.00% senior notes, (5) 7.00% senior notes, (6) 9.625% senior notes, (7) 9.875% senior notes, (8) 5.125% senior notes, (9) 6.75% senior notes, (10) 4.50% senior notes and (11) 5.95% senior notes. In addition to these obligations, the following obligations of Weatherford Bermuda were guaranteed by Weatherford Delaware at December 31, 2012 and 2011: (1) the 4.95% senior notes and (2) 5.15% senior notes. In 2013, we entered into a 364-day term loan facility, which is an obligation of Weatherford Bermuda guaranteed by Weatherford Delaware.
	As a result of these guarantee arrangements, we are required to present the following condensed consolidating financial information. The accompanying guarantor financial information is presented on the equity method of accounting for all periods presented. Under this method, investments in subsidiaries are recorded at cost and adjusted for our share in the subsidiaries’ cumulative results of operations, capital contributions and distributions and other changes in equity. Elimination entries relate primarily to the elimination of investments in subsidiaries and associated intercompany balances and transactions.
	Condensed Consolidating Balance Sheet
	December 31, 2013
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Current Assets:
	Cash and Cash Equivalents	$	—		$	—		$	—		$	435		$	—		$	435
	Other Current Assets	57			5			415			8,270			(408		)	8,339
	Total Current Assets	57			5			415			8,705			(408		)	8,774
	Equity Investments in Affiliates	8,663			11,742			8,065			6,466			(34,936		)	—
	Equity Held in Parent	—			—			10			27			(37		)	—
	Intercompany Receivables, Net	—			—			—			7,304			(7,304		)	—
	Other Assets	7			41			17			13,138			—			13,203
	Total Assets	$	8,727		$	11,788		$	8,507		$	35,640		$	(42,685	)	$	21,977
	Current Liabilities:
	Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	1,445		$	23		$	198		$	—		$	1,666
	Accounts Payable and Other Current Liabilities	312			129			—			4,000			(408		)	4,033
	Total Current Liabilities	312			1,574			23			4,198			(408		)	5,699
	Long-term Debt	—			5,891			986			184			—			7,061
	Intercompany Payables, Net	243			6,755			306			—			(7,304		)	—
	Other Long-term Liabilities	10			97			2			905			—			1,014
	Total Liabilities	565			14,317			1,317			5,287			(7,712		)	13,774
	Weatherford Shareholders’ Equity	8,162			(2,529		)	7,190			30,312			(34,973		)	8,162
	Noncontrolling Interests	—			—			—			41			—			41
	Total Liabilities and Shareholders’ Equity	$	8,727		$	11,788		$	8,507		$	35,640		$	(42,685	)	$	21,977
	Condensed Consolidating Balance Sheet
	December 31, 2012
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Current Assets:
	Cash and Cash Equivalents	$	—		$	—		$	—		$	300		$	—		$	300
	Other Current Assets	5			5			256			8,682			(219		)	8,729
	Total Current Assets	5			5			256			8,982			(219		)	9,029
	Equity Investments in Affiliates	9,184			14,790			7,675			8,458			(40,107		)	—
	Equity Held in Parent	—			—			10			172			(182		)	—
	Intercompany Receivables, Net	—			1,872			—			—			(1,872		)	—
	Other Assets	17			45			14			13,690			—			13,766
	Total Assets	$	9,206		$	16,712		$	7,955		$	31,302		$	(42,380	)	$	22,795
	Current Liabilities:
	Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	1,439		$	26		$	120		$	—		$	1,585
	Accounts Payable and Other Current Liabilities	8			246			—			4,089			(218		)	4,125
	Total Current Liabilities	8			1,685			26			4,209			(218		)	5,710
	Long-term Debt	—			5,895			1,019			135			—			7,049
	Intercompany Payables, Net	400			—			477			995			(1,872		)	—
	Other Long-term Liabilities	12			76			3			1,127			—			1,218
	Total Liabilities	420			7,656			1,525			6,466			(2,090		)	13,977
	Weatherford Shareholders’ Equity	8,786			9,056			6,430			24,804			(40,290		)	8,786
	Noncontrolling Interests	—			—			—			32			—			32
	Total Liabilities and Shareholders’ Equity	$	9,206		$	16,712		$	7,955		$	31,302		$	(42,380	)	$	22,795
	Condensed Consolidating Statement of Operations
	Year Ended December 31, 2013
	(Dollars in millions)
		Weatherford Switzerland			Weatherford Bermuda			Weatherford Delaware			Other			Eliminations			Consolidation
											Subsidiaries
	Revenues	$	—		$	—		$	—		$	15,263		$	—		$	15,263
	Costs and Expenses	(50		)	(139		)	(3		)	(14,548		)	—			(14,740		)
	Operating Income (Loss)	(50		)	(139		)	(3		)	715			—			523
Other Income (Expense):
Interest Expense, Net	—			(430		)	(61		)	(25		)	—			(516		)
Intercompany Charges, Net	(53		)	49			(337		)	341			—			—
Equity in Subsidiary Income	(242		)	30			461			—			(249		)	—
Other, Net	—			(31		)	(2		)	(144		)	—			(177		)
Income (Loss) Before Income Taxes	(345		)	(521		)	58			887			(249		)	(170		)
(Provision) Benefit for Income Taxes	—			—			145			(289		)	—			(144		)
Net Income (Loss)	(345		)	(521		)	203			598			(249		)	(314		)
Noncontrolling Interests	—			—			—			(31		)	—			(31		)
Net Income (Loss) Attributable to Weatherford	$	(345	)	$	(521	)	$	203		$	567		$	(249	)	$	(345	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(695	)	$	(788	)	$	39		$	214		$	535		$	(695	)
Condensed Consolidating Statement of Operations
Year Ended December 31, 2012
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Revenues	$	—		$	—		$	—		$	15,215		$	—		$	15,215
Costs and Expenses	(59		)	(114		)	(5		)	(14,739		)	—			(14,917		)
Operating Income (Loss)	(59		)	(114		)	(5		)	476			—			298
Other Income (Expense):
Interest Expense, Net	—			(401		)	(69		)	(16		)	—			(486		)
Intercompany Charges, Net	(28		)	53			(233		)	208			—			—
Equity in Subsidiary Income	(689		)	(701		)	(94		)	—			1,484			—
Other, Net	(2		)	(34		)	—			(64		)	—			(100		)
Income (Loss) Before Income Taxes	(778		)	(1,197		)	(401		)	604			1,484			(288		)
(Provision) Benefit for Income Taxes	—			—			107			(569		)	—			(462		)
Net Income (Loss)	(778		)	(1,197		)	(294		)	35			1,484			(750		)
Noncontrolling Interests	—			—			—			(28		)	—			(28		)
Net Income (Loss) Attributable to Weatherford	$	(778	)	$	(1,197	)	$	(294	)	$	7		$	1,484		$	(778	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(695	)	$	(1,197	)	$	(294	)	$	90		$	1,401		$	(695	)
Condensed Consolidating Statement of Operations
Year Ended December 31, 2011
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Revenues	$	—		$	—		$	—		$	12,988		$	—		$	12,988
Costs and Expenses	(48		)	(3		)	(3		)	(11,627		)	—			(11,681		)
Operating Income (Loss)	(48		)	(3		)	(3		)	1,361			—			1,307
Other Income (Expense):
Interest Expense, Net	—			(353		)	(90		)	(10		)	—			(453		)
Intercompany Charges, Net	(61		)	16			(177		)	222			—			—
Equity in Subsidiary Income	299			281			802			—			(1,382		)	—
Other, Net	—			(33		)	(1		)	(73		)	—			(107		)
Income (Loss) Before Income Taxes	190			(92		)	531			1,500			(1,382		)	747
(Provision) Benefit for Income Taxes	(1		)	—			65			(606		)	—			(542		)
Net Income (Loss)	189			(92		)	596			894			(1,382		)	205
Noncontrolling Interests	—			—			—			(16		)	—			(16		)
Net Income (Loss) Attributable to Weatherford	$	189		$	(92	)	$	596		$	878		$	(1,382	)	$	189
Comprehensive Income (Loss) Attributable to Weatherford	$	67		$	(92	)	$	596		756			(1,260		)	67
Condensed Consolidating Statement of Cash Flows
Year Ended December 31, 2013
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Cash Flows from Operating Activities:
Net Income (Loss)	$	(345	)	$	(521	)	$	203		$	598		$	(249	)	$	(314	)
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	53			(49		)	337			(341		)	—			—
Equity in (Earnings) Loss of Affiliates	242			(30		)	(461		)	—			249			—
Deferred Income Tax Provision (Benefit)	—			—			28			(61		)	—			(33		)
Other Adjustments	(48		)	748			470			406			—			1,576
Net Cash Provided (Used) by Operating Activities	(98		)	148			577			602			—			1,229
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(1,575		)	—			(1,575		)
Acquisitions of Businesses, Net of Cash Acquired	—			—			—			(8		)	—			(8		)
Acquisition of Intellectual Property	—			—			—			(9		)	—			(9		)
Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			—			—			—
Proceeds from Sale of Assets and Businesses, Net	—			—			—			488			—			488
Capital Contribution to Subsidiary	—			(1,181		)	—			—			1,181			—
Net Cash Provided (Used) by Investing Activities	—			(1,181		)	—			(1,104		)	1,181			(1,104		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			550			(4		)	66			—			612
Borrowings (Repayments) Long-term Debt, Net	—			(544		)	(30		)	(26		)	—			(600		)
Borrowings (Repayments) Between Subsidiaries, Net	100			1,027			(565		)	(562		)	—			—
Proceeds from Capital Contributions	—			—			—			1,181			(1,181		)	—
Other, Net	(2		)	—			22			(26		)	—			(6		)
Net Cash Provided (Used) by Financing Activities	98			1,033			(577		)	633			(1,181		)	6
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			4			—			4
Net Increase in Cash and Cash Equivalents	—			—			—			135			—			135
Cash and Cash Equivalents at Beginning of Year	—			—			—			300			—			300
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	435		$	—		$	435
Condensed Consolidating Statement of Cash Flows
Year Ended December 31, 2012
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Cash Flows from Operating Activities:
Net Income (Loss)	$	(778	)	$	(1,197	)	$	(294	)	$	35		$	1,484		$	(750	)
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	28			(53		)	233			(208		)	—			—
Equity in (Earnings) Loss of Affiliates	689			701			94			—			(1,484		)	—
Deferred Income Tax Provision (Benefit)	—			—			10			(23		)	—			(13		)
Other Adjustments	50			35			472			1,427			—			1,984
Net Cash Provided (Used) by Operating Activities	(11		)	(514		)	515			1,231			—			1,221
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(2,177		)	—			(2,177		)
Acquisitions of Businesses, Net of Cash Acquired	(30		)	—			—			(135		)	—			(165		)
Acquisition of Intellectual Property	—			—			—			(17		)	—			(17		)
Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			(8		)	—			(8		)
Proceeds from Sale of Assets and Businesses, Net	—			—			—			61			—			61
Capital Contribution to Subsidiary	(30		)	(85		)	(118		)	118			115			—
Net Cash Provided (Used) by Investing Activities	(60		)	(85		)	(118		)	(2,158		)	115			(2,306		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			(108		)	—			95			—			(13		)
Borrowings (Repayments) Long-term Debt, Net	—			1,295			(296		)	4			—			1,003
Borrowings (Repayments) Between Subsidiaries, Net	71			(588		)	(101		)	618			—			—
Proceeds from Capital Contributions	—			—			—			115			(115		)	—
Other, Net	—			—			—			22			—			22
Net Cash Provided (Used) by Financing Activities	71			599			(397		)	854			(115		)	1,012
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			2			—			2
Net Increase in Cash and Cash Equivalents	—			—			—			(71		)	—			(71		)
Cash and Cash Equivalents at Beginning of Year	—			—			—			371			—			371
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	300		$	—		$	300
Condensed Consolidating Statement of Cash Flows
Year Ended December 31, 2011
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Cash Flows from Operating Activities:
Net Income (Loss)	$	189		$	(92	)	$	596		$	894		$	(1,382	)	$	205
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	61			(16		)	177			(222		)	—			—
Equity in (Earnings) Loss of Affiliates	(299		)	(281		)	(802		)	—			1,382			—
Deferred Income Tax Benefit	—			—			(65		)	186			—			121
Other Adjustments	3			(73		)	(31		)	627			—			526
Net Cash Provided (Used) by Operating Activities	(46		)	(462		)	(125		)	1,485			—			852
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(1,524		)	—			(1,524		)
Acquisitions of Businesses, Net of Cash Acquired	(4		)	—			—			(140		)	—			(144		)
Acquisition of Intellectual Property	—			—			—			(8		)	—			(8		)
Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			(14		)	—			(14		)
Proceeds from Sale of Assets and Businesses, Net	—			—			—			31			—			31
Capital Contribution to Subsidiary	(4		)	(25		)	4			—			25			—
Other Investing Activities	—			—			—			(15		)	—			(15		)
Net Cash Provided (Used) by Investing Activities	(8		)	(25		)	4			(1,670		)	25			(1,674		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			996			—			(4		)	—			992
Borrowings (Repayments) Long-term Debt, Net	—			—			(18		)	(176		)	—			(194		)
Borrowings (Repayments) Between Subsidiaries, Net	54			(623		)	127			442			—			—
Proceeds from Capital Contributions	—			—			—			25			(25		)	—
Other, Net	—			—			—			(21		)	—			(21		)
Net Cash Provided (Used) by Financing Activities	54			373			109			266			(25		)	777
Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—			—			—			—			—
Net Increase in Cash and Cash Equivalents	—			(114		)	(12		)	81			—			(45		)
Cash and Cash Equivalents at Beginning of Year	—			114			12			290			—			416
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	371		$	—		$	371

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Data (Unaudited)	'
	Quarterly Financial Data (Unaudited)
		2013 Quarters
	(Dollars in millions, except per share amounts)	First		Second			Third		Fourth			Total
	Revenues	$	3,837	$	3,868		$	3,820	$	3,738		$	15,263
	Gross Profit	831		742			784		604			2,961
	Net Income (Loss) Attributable to Weatherford	22		(118		)	22		(271		)	(345		)
	Basic Earnings (Loss) Per Share (a)	0.03		(0.15		)	0.03		(0.35		)	(0.45		)
	Diluted Earnings (Loss) Per Share (a)	0.03		(0.15		)	0.03		(0.35		)	(0.45		)
		2012 Quarters
	(Dollars in millions, except per share amounts)	First		Second			Third		Fourth			Total
	Revenues	$	3,591	$	3,747		$	3,819	$	4,058		$	15,215
	Gross Profit	891		776			852		841			3,360
	Net Income (Loss) Attributable to Weatherford	123		(849		)	70		(122		)	(778		)
	Basic Earnings (Loss) Per Share	0.16		(1.11		)	0.09		(0.16		)	(1.02		)
	Diluted Earnings (Loss) Per Share	0.16		(1.11		)	0.09		(0.16		)	(1.02		)
	(a)	Per share amounts may not sum across due to rounding.
	Effective February 13, 2013, the Venezuelan government devalued its currency and the official exchange rate moved from 4.30 per dollar to 6.30 per dollar for all goods and services. Included in the results for the quarter ended March 31, 2013, we recognized a charge of approximately $100 million for the remeasurement of our net monetary assets denominated in the Venezuelan bolivar at the date of the devaluation.
	The results for the quarter ended June 30, 2013 include a $153 million accrual related to the U.S. government investigations.
	The results for the quarter ended December 31, 2013 include our recognition of a $58 million loss upon settlement of $127 million in outstanding receivables due from PDVSA.
	Included in the results for the quarters ended September 30, 2013 and December 31, 2013, were estimated project losses of $85 million and $148 million, respectively, related to our long-term early production facility construction contracts in Iraq accounted for under the percentage of completion method. Total estimated losses on these projects were $307 million at December 31, 2013. As of December 31, 2013, our percentage of completion project estimates include $36 million of claims revenue.
	Included in the results for the quarter ended June 30, 2012, are goodwill and equity method impairment losses of $589 million and $204 million, respectively, a charge for excess and obsolete inventory of $64 million, and a $28 million gain on the sale of our subsea controls business.
	The results for the quarter ended September 30, 2012 include a charge of $30 million to adjust the carrying value of our guar inventory, a component of certain drilling fluids, to the lower of cost or market.
	Included in the results for the quarter ended December 31, 2012 is $63 million in revenue recognized upon the revision of project estimates on our projects in Mexico. Also included in the results for the quarter ended December 31, 2012 are adjustments to correct errors in years prior to 2012 that reduce gross profit by $27 million and increase “Net Loss Attributable to Weatherford” for the quarter by $31 million. The impact of these errors, the most significant of which related to the elimination of intercompany profit in inventory, is not material to any individual prior interim or annual period.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts and Allowances	12 Months Ended
	Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]	'
Schedule II - Valuation and Qualifying Accounts and Allowances	'
	SCHEDULE II
	WEATHERFORD INTERNATIONAL LTD. AND SUBSIDIARIES
	VALUATION AND QUALIFYING ACCOUNTS AND ALLOWANCES
	FOR THE THREE YEARS ENDED DECEMBER 31, 2013
	(Dollars in millions)	Balance at Beginning of Period		Expense		(Recovery) and Additions			Other Reductions			Balance at End of Period
	Year Ended December 31, 2013:
	Allowance for uncollectible accounts receivable	$	84	$	102	$	(12	)	$	(60	)	$	114
	Valuation allowance on deferred tax assets	317		264		—			(10		)	571
	Year Ended December 31, 2012:
	Allowance for uncollectible accounts receivable	91		22		(8		)	(21		)	84
	Valuation allowance on deferred tax assets	201		108		8			—			317
	Year Ended December 31, 2011:
	Allowance for uncollectible accounts receivable	59		52		(1		)	(19		)	91
	Valuation allowance on deferred tax assets	173		42		—			(14		)	201
	All other schedules are omitted because they are not required or because the information is included in the financial statements or the related notes.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Organization and Nature of Operations	'
	Organization and Nature of Operations
	Weatherford International Ltd., a Swiss joint-stock corporation (together with its subsidiaries, “Weatherford,” the “Company,” “we,” “us,” and “our”), is one of the world’s leading providers of equipment and services used in the drilling, evaluation, completion, production and intervention of oil and natural gas wells. We operate in over 100 countries, which are located in nearly all of the oil and natural gas producing regions in the world. Many of our businesses, including those of our predecessor companies, have been operating for more than 50 years.
	Our parent company was Weatherford International, Inc., a Delaware corporation (“Weatherford Delaware”), until we moved our incorporation to Bermuda in 2002. In February 2009, we completed a share exchange transaction in which Weatherford International Ltd., a Bermuda exempted company, and our then parent company (“Weatherford Bermuda”), became a wholly-owned subsidiary of Weatherford International Ltd., a Swiss joint-stock corporation (“Weatherford Switzerland”), for purposes of changing the Company’s place of incorporation from Bermuda to Switzerland (the “Transaction”). Pursuant to the Transaction, each common share, par value U.S. $1.00 per share, of Weatherford Bermuda was exchanged for one registered share, par value 1.16 Swiss francs (“CHF”) per share, of Weatherford Switzerland. Weatherford Bermuda and Weatherford Delaware continue to be wholly-owned subsidiaries of Weatherford Switzerland.
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of Weatherford International Ltd., all wholly-owned subsidiaries, controlled joint ventures and variable interest entities in which the Company has determined it is the primary beneficiary for accounting purposes. All material intercompany accounts and transactions have been eliminated within our consolidated financial statements.
	Investments in affiliates in which we exercise significant influence over operating and financial policies are accounted for using the equity method. We recognize equity in earnings of unconsolidated affiliates in Selling, General and Administration attributable to segments in our Consolidated Statements of Operations (see Note 9 –Equity Investments).
	We have a significant variable interest in a lessor trust that is a variable interest entity. We are not the primary beneficiary and do not consolidate the trust. The variable interest in the trust is created by the residual fair value guarantees on the leased assets. Our maximum exposure to loss associated with this variable interest and the respective fair value guarantees totaled $46 million at December 31, 2013. In addition, we have guaranteed debt on behalf of equity investees in whom we have a variable interest and for which we are not the primary beneficiary. These guarantees totaled $118 million at December 31, 2013.
	Deconsolidation
	During 2011, we deconsolidated three joint ventures that should have been deconsolidated as of January 1, 2010 in accordance with the U.S. generally accepted accounting principles (“U.S. GAAP”) variable interest entity accounting guidance, effective in 2010. We recognized equity investments totaling $43 million and derecognized the associated noncontrolling interests totaling $34 million.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period and disclosure of contingent liabilities. On an on-going basis, we evaluate our estimates, including those related to uncollectible accounts receivable, lower of cost or market value of inventories, equity investments, intangible assets and goodwill, property, plant and equipment, income taxes, percentage-of-completion accounting for long-term contracts, self-insurance, pension and post-retirement benefit plans, contingencies and share based payments. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other sources. Actual results could differ from those estimates.
Disputes, Litigation and Contingencies	'
	Disputes, Litigation and Contingencies
	We accrue an estimate of the probable and estimable cost to resolve certain legal and investigation matters. For matters not deemed probable and reasonably estimable, we have not accrued any amounts in accordance with U.S. GAAP. Our contingent loss estimates are based upon an analysis of potential results, assuming a combination of probable litigation and settlement strategies. The accuracy of these estimates is impacted by the complexity of the associated issues.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	We consider all highly liquid investments with original maturities of three months or less to be cash equivalents.
Allowance for Doubtful Accounts	'
	Allowance for Doubtful Accounts
	We establish an allowance for doubtful accounts based on various factors including historical experience, the current aging status of our customer accounts, the financial condition of our customers and the business and political environment in which our customers operate. Provisions for doubtful accounts are recorded when it becomes probable that customer accounts are uncollectible.
Major Customers and Credit Risk	'
	Major Customers and Credit Risk
	Substantially all of our customers are engaged in the energy industry. This concentration of customers may impact our overall exposure to credit risk, either positively or negatively, in that customers may be similarly affected by changes in economic and industry conditions. We perform on-going credit evaluations of our customers and do not generally require collateral in support of our trade receivables. We maintain reserves for potential credit losses, and actual losses have historically been within our expectations. International sales also present various risks, including risks of war, civil disturbances and governmental activities that may limit or disrupt markets, restrict the movement of funds, or result in the deprivation of contract rights or the taking of property without fair consideration. Most of our international sales are to large international or national oil companies and these sales have resulted in a concentration of receivables from certain national oil companies in Latin America. As of December 31, 2013 our receivables from Latin America customers accounted for 38% of our net outstanding accounts receivable balance with $326 million due from Petroleos de Venezuela, S.A. (“PDVSA”) and $437 million due from Petroleos Mexicanos (“Pemex”). In 2013 we recognized a loss of $58 million, upon settlement of $127 million in outstanding receivables due from PDVSA. We accepted bonds with a face value of $127 million from PDVSA in full settlement of $127 million in trade receivables. Upon receipt, we immediately sold these bonds for a loss in a series of transactions. During 2013, 2012 and 2011, no individual customer accounted for more than 10% of our consolidated revenues.
Inventories	'
	Inventories
	We value our inventories at lower of cost or market using either the first-in, first-out (“FIFO”) or average cost methods. Cost represents third-party invoice or production cost. Production cost includes material, labor and manufacturing overhead. Work in process and finished goods inventories include the cost of materials, labor and manufacturing overhead.
Property, Plant and Equipment	'
	Property, Plant and Equipment
	We carry our property, plant and equipment, both owned and under capital lease, at cost less accumulated depreciation. The carrying values are based on our estimates and judgments relative to capitalized costs, useful lives and salvage value, where applicable. We expense maintenance and repairs as incurred. We capitalize expenditures for improvements as well as renewals and replacements that extend the useful life of the asset. We depreciate our fixed assets on a straight-line basis over their estimated useful lives, allowing for salvage value where applicable.
Goodwill and Indefinite Lived Intangibles Assets	'
	Goodwill and Indefinite-Lived Intangible Assets
	We test for the impairment of goodwill and other intangible assets with indefinite lives annually as of October 1, or more frequently if indicators of impairment exist. Our goodwill impairment test involves a comparison of the fair value of each of our reporting units with its carrying amount.
	The fair value of our reporting units is determined using primarily an income approach. The fair value was estimated using discounted cash flows using a discount rate adjusted for credit risk of the regional reporting unit tested. If the fair value of a reporting unit is less than the recorded book value of the reporting unit’s assets (including goodwill), less liabilities, then a hypothetical purchase price allocation is performed on the reporting unit’s assets and liabilities using the fair value of the reporting unit as the purchase price in the calculation. If the amount of goodwill resulting from this hypothetical purchase price allocation is less than the recorded amount of goodwill, the recorded goodwill is written down to the new amount. Our indefinite-lived asset impairment test involves a comparison of the fair value of the intangible asset and its carrying value. If the fair value is less than the carrying value, the asset is written down to fair value.
Intangible Assets	'
	Intangible Assets
	Our intangible assets, excluding goodwill, are acquired technology, licenses, patents, customer relationships and other identifiable intangible assets. Intangible assets are amortized on a straight-line basis over their estimated economic lives generally ranging from two to 20 years, except for intangible assets with indefinite lives, which are not amortized. As many areas of our business rely on patents and proprietary technology, we seek patent protection both inside and outside the U.S. for products and methods that appear to have commercial significance. We capitalize patent defense costs when we determine that a successful defense is probable.
Long-Lived Assets	'
	Long-Lived Assets
	We review our long-lived assets to determine whether any events or changes in circumstances indicate the carrying amount of the assets may not be recoverable. Factors that might indicate a potential impairment may include, but are not limited to, significant decreases in the market value of the long-lived asset, a significant change in the long-lived asset’s physical condition, a change in industry conditions or a reduction in cash flows associated with the use of the long-lived asset. If these or other factors indicate the carrying amount of the asset may not be recoverable, we determine whether an impairment has occurred through analysis of undiscounted cash flow of the asset at the lowest level that has an identifiable cash flow. If an impairment has occurred, we recognize a loss for the difference between the carrying amount and the fair value of the asset. We measure the fair value of the asset using market prices or, in the absence of market prices, based on an estimate of discounted cash flows. Cash flows are generally discounted using an interest rate commensurate with a weighted average cost of capital for a similar asset.
Research and Development Expenditures	'
	Research and Development Expenditures
	Research and development expenditures are expensed as incurred.
Environmental Expenditures	'
	Environmental Expenditures
	Environmental expenditures that relate to the remediation of an existing condition caused by past operations and that do not contribute to future revenues are expensed. Liabilities for these expenditures are recorded when it is probable that obligations have been incurred and costs can be reasonably estimated. Estimates are based on available facts and technology, enacted laws and regulations and our prior experience in remediation of contaminated sites.
Derivatives Financial Instruments	'
	Derivative Financial Instruments
	We record derivative instruments on the balance sheet at their fair value, as either an asset or a liability. Changes in the fair value of derivatives are recorded each period in current earnings or other comprehensive income (loss), depending on whether the derivative is designated as part of a hedge relationship, and if so, the type of hedge transaction. Any gain or loss associated with the termination of an interest rate swap that was accounted for as a hedge instrument is deferred and amortized as an adjustment to interest expense over the remaining term of the designated debt instrument.
Foreign Currency	'
	Foreign Currency
	Results of operations for our foreign subsidiaries with functional currencies other than the U.S. dollar are translated using average exchange rates during the period. Assets and liabilities of these foreign subsidiaries are translated using the exchange rates in effect at the balance sheet dates, and the resulting translation adjustments are included as Accumulated Other Comprehensive Income (Loss), a component of shareholders’ equity.
	For our subsidiaries that have a functional currency that differs from the currency of their balances and transactions, inventories, property, plant and equipment and other non-monetary assets and liabilities, together with their related elements of expense or income, are remeasured using historical exchange rates. All monetary assets and liabilities are remeasured at current exchange rates. All revenues and expenses are translated at average exchange rates. Remeasurement gains and losses for these subsidiaries are recognized in our results of operations during the period incurred. We had net foreign currency losses, excluding the devaluation of the Venezuelan bolivar of $66 million, $85 million and $84 million in 2013, 2012 and 2011, respectively. In addition, during 2013 we recognized a charge of approximately $100 million on the devaluation of the Venezuelan bolivar. Due to the magnitude, the 2013 devaluation of the Venezuelan bolivar is discussed separately below under the heading “Foreign Currency - Devaluation of Venezuelan Bolivar.” The gain or loss related to individual foreign currency transactions, excluding the devaluation of the Venezuelan bolivar, is included in Other, Net in our Consolidated Statements of Operations.
	Foreign Currency - Devaluation of Venezuelan Bolivar
	On February 8, 2013, the Venezuelan government announced its intention to devalue its currency effective February 13, 2013 at which time the official exchange rate will have moved from 4.30 per dollar to 6.30 per dollar for all goods and services. In connection with this devaluation, we recognized a charge of approximately $100 million in 2013 for the remeasurement of our net monetary assets denominated in the Venezuelan bolivar at the date of the devaluation. Our net investment in Venezuela was $666 million at December 31, 2013. Our net monetary asset position denominated in Venezuelan bolivar was $238 million at December 31, 2013.
Share-Based Compensation	'
	Share-Based Compensation
	We account for all share-based payment awards, including shares issued under employee stock purchase plans, stock options, restricted stock and performance units by measuring these awards at the date of grant and recognizing the grant date fair value as an expense, net of expected forfeitures, over the service period, which is usually the vesting period.
Income Taxes	'
	Income Taxes
	Income taxes have been provided based upon the tax laws and rates in the countries in which our operations are conducted and income is earned. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance for deferred tax assets is recorded when it is more likely than not that some or all of the benefit from the deferred tax asset will not be realized. The impact of an uncertain tax position taken or expected to be taken on an income tax return is recognized in the financial statements at the largest amount that is more likely than not to be sustained upon examination by the relevant taxing authority.
Revenue Recognition	'
	Revenue Recognition
	Revenue is recognized when all of the following criteria have been met: (1) evidence of an arrangement exists; (2) delivery to and acceptance by the customer has occurred; (3) the price to the customer is fixed or determinable; and (4) collectability is reasonably assured.
	Both contract drilling and pipeline service revenue is contractual by nature and generally governed by day-rate based contracts. We recognize revenue for these day-rate contracts based on the criteria outlined above, which is consistent with our other product offerings.
	From time to time, we may receive revenues for preparation and mobilization of equipment and personnel. In connection with new drilling contracts, revenues earned and incremental costs incurred directly related to preparation and mobilization are deferred and recognized over the primary contract term using the straight-line method. Costs of relocating equipment without contracts to more promising market areas are expensed as incurred. Demobilization fees received are recognized, along with any related expenses, upon completion of contracts.
	We incur rebillable expenses including shipping and handling, third-party inspection and repairs, and customs costs and duties. We recognize the revenue associated with these rebillable expenses as Products Revenues and all related costs as Cost of Products in the accompanying Consolidated Statements of Operations.
Percentage- of- Completion	'
	Percentage-of-Completion
	Revenue from certain long-term construction type contracts is reported based on the percentage-of-completion method of accounting. This method of accounting requires us to calculate contract profit to be recognized in each reporting period for each contract based upon our projections of future outcomes, which include:
	•estimates of the available revenue under the contracts;
	•estimates of the total cost to complete the project;
	•estimates of project schedule and completion date;
	•estimates of the extent of progress toward completion; and
	•amount of any change orders or claims included in revenue.
	Measurements of progress are based on costs incurred to date as a percentage of total estimated costs or output based related to physical progress. At the outset of each contract, we prepare a detailed analysis of our estimated cost to complete the project. Risks related to service delivery, usage, productivity and other factors are considered in the estimation process. We periodically evaluate the estimated costs, claims, change orders and percentage-of-completion at the contract level. The recording of profits and losses on long-term contracts requires an estimate of the total profit or loss over the life of each contract. This estimate requires consideration of total contract value, change orders and claims, less costs incurred and estimated costs to complete. Anticipated losses on contracts are recorded in full in the period in which they become evident. Profits are recorded based upon the total estimated contract profit multiplied by the current estimated percentage complete for the contract.
Earnings per Share	'
	Earnings per Share
	Basic earnings per share for all periods presented equals net income divided by the weighted average number of our shares outstanding during the period including participating securities. Diluted earnings per share is computed by dividing net income by the weighted average number of our shares outstanding during the period including participating securities, adjusted for the dilutive effect of our stock options, restricted shares, performance units and our outstanding warrants.
	Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid, are participating securities and are included in the computation of earnings per share following the two-class method. Accordingly, we include our restricted share awards (“RSA”), which contain the right to vote and receive dividends, in the computation of both basic and diluted earnings per share.
New Accounting Pronouncements	'
	New Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance intended to improve the reporting of reclassifications out of accumulated other comprehensive income. The guidance requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. GAAP to be reclassified in its entirety to net income. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety from accumulated other comprehensive income to net income in the same reporting period, an entity is required to cross-reference other disclosures required under U.S. GAAP that provide additional detail about those amounts. This guidance became effective for us in our second quarter of 2013. Please see Note 14 – Shareholders' Equity, which presents the reclassifications out of Accumulated Other Comprehensive Income.
	In July 2013, the FASB issued new guidance intended to clarify the presentation of unrecognized tax benefits. An unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carry forward, a similar tax loss, or a tax credit carryforward, with certain exceptions. The unrecognized tax benefit should be presented as a liability and should not be combined with deferred tax assets to the extent that: (1) the deferred tax asset is not available under the tax law of the applicable jurisdiction to settle additional income taxes resulting from disallowance of the tax position, or (2) the entity is not required to use the deferred tax asset under the tax law of the applicable jurisdiction and the entity does not intend to use the deferred tax asset to offset additional taxes that would result from disallowance of the position. This guidance will be effective for us beginning with the first quarter of 2014 and may be adopted prospectively for all unrecognized tax benefits that exist at the effective date or retrospectively. The adoption of this guidance is not expected to have a material impact on our financial position, results of operations or cash flows.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Schedule of Property, Plant and Equipment and Estimated Useful Lives	'
	Our depreciation expense for the years ended December 31, 2013, 2012 and 2011 was $1.3 billion, $1.2 billion and $1.0 billion, respectively. We classify our rig assets as Rental and Service Equipment on the Consolidated Balance Sheets.
	The estimated useful lives of our major classes of property, plant and equipment are as follows:
		Estimated
		Useful Lives
	Buildings and leasehold improvements	10 – 40 years or lease term
	Rental and service equipment	2 – 20 years
	Machinery and other	2 – 12 years
Reconciliation Of Weighted Average Shares Outstanding	'
	The following reconciles basic and diluted weighted average shares outstanding:
		Year Ended December 31,
	(Shares in millions)	2013	2012	2011
	Basic weighted average shares outstanding	772	765	753
	Dilutive effect of:
	Warrants	—	—	2
	Stock options and restricted shares	—	—	5
	Diluted weighted average shares outstanding	772	765	760
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	'
	Our diluted weighted average shares outstanding for the years ended December 31, 2013, 2012 and 2011, exclude potential shares that are anti-dilutive, such as options where the exercise price exceeds the current market price of our stock. In addition, diluted weighted average shares outstanding for the years ended December 31, 2013 and 2012, exclude potential shares for stock options, restricted shares and performance units outstanding as we have net losses for that period as their inclusion would be anti-dilutive. The following table discloses the number of anti-dilutive shares excluded:
		Year Ended December 31,
	(Shares in millions)	2013	2012	2011
	Anti-dilutive potential shares	5	4	5

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Schedule of Cash Flow, Supplemental Disclosures	'
	Cash paid for interest and income taxes, net of refunds, was as follows:
		Year Ended December 31,
	(Dollars in millions)	2013		2012		2011
	Interest paid, net of capitalized interest	$	525	$	478	$	461
	Income taxes paid, net of refunds	442		443		291

Inventories_Net_Tables

Inventories, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Components of Inventory	'
	Inventories, net of reserves, by category were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Raw materials, components and supplies	$	386	$	461
	Work in process	130		166
	Finished goods	2,855		3,048
		$	3,371	$	3,675

Goodwill_Tables

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill	'
	The changes in the carrying amount of goodwill by reportable segment for the two years ended December 31, 2013 and 2012 were as follows:
	(Dollars in millions)	North			MENA/			Europe/			Latin			Total
		America			Asia Pacific			SSA/			America
								Russia
	Balance at December 31, 2011	$	2,272		743			1,024			384			4,423
	Acquisitions	59			—			46			—			105
	Disposals	(2		)	(7		)	(65		)	—			(74		)
	Impairment loss	—			(512		)	(77		)	—			(589		)
	Purchase price and other adjustments	(18		)	—			—			(24		)	(42		)
	Foreign currency translation adjustments	25			2			27			(6		)	48
	Balance at December 31, 2012	2,336			226			955			354			3,871
	Acquisitions	—			—			2			—			2
	Disposals	(23		)	(4		)	(13		)	(1		)	(41		)
	Purchase price and other adjustments	1			—			(3		)	2			—
	Foreign currency translation adjustments	(71		)	(13		)	(29		)	(10		)	(123		)
	Balance at December 31, 2013	$	2,243		$	209		$	912		$	345		$	3,709

Other_Intangible_Assets_Tables

Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Finite-Lived Intangible Assets	'
	The components of intangible assets were as follows:
		December 31, 2013							December 31, 2012
	(Dollars in millions)	Gross		Accumulated Amortization			Net		Gross		Accumulated			Net
		Carrying							Carrying		Amortization
		Amount							Amount
	Acquired technology	$	417	$	(238	)	$	179	$	423	$	(207	)	$	216
	Licenses	261		(161		)	100		254		(139		)	115
	Patents	271		(129		)	142		266		(113		)	153
	Customer relationships and contracts	329		(163		)	166		353		(148		)	205
	Other	91		(52		)	39		128		(51		)	77
		$	1,369	$	(743	)	$	626	$	1,424	$	(658	)	$	766
Acquired Intangible Assets by Major Class	'
	Additions to intangibles for the years ended December 31, 2013 and 2012 were as follows:
		Year Ended December 31,
	(Dollars in millions)	2013		2012
	Acquired technology	$	1	$	—
	Licenses	3		13
	Patents	5		34
	Customer relationships and contracts	4		100
	Other	2		30
	Total	$	15	$	177
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	'
	Future estimated amortization expense for the carrying amount of intangible assets as of December 31, 2013 is expected to be as follows (dollars in millions):
	Period	Amount
	2014	$	116
	2015	84
	2016	69
	2017	64
	2018	59

Equity_Investments_Tables

Equity Investments (Tables)	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Schedule of Equity Method Investments	'
	Our equity investments in unconsolidated affiliates were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Borets (formerly PBS)	$	—	$	356
	Proserv Group Inc.	168		170
	Other equity investments	128		120
		$	296	$	646

Shortterm_Borrowings_and_Curre1

Short-term Borrowings and Current Portion of Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Components of short-term borrowings	'
		December 31,
	(Dollars in millions)	2013			2012
	Commercial paper program	$	292		$	888
	Revolving credit facility	772			—
	364-day term loan facility	300			—
	Other short-term bank loans	229			109
	Total short-term borrowings	1,593			997
	Current portion of long-term debt	73			588
	Short-term borrowings and current portion of long-term debt	$	1,666		$	1,585
	Weighted average interest rate on short-term borrowings outstanding at end of year	1.71		%	1.54		%

Longterm_Debt_Tables

Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of long-term debt	'
	We have issued various senior notes, all of which rank equally with our existing and future senior unsecured indebtedness, have semi-annual interest payments and no sinking fund requirements. Our Long-term Debt consisted of the following:
		December 31,
	(Dollars in millions)	2013		2012
	5.15% Senior Notes due 2013	$	—	$	294
	4.95% Senior Notes due 2013	—		250
	5.50% Senior Notes due 2016	353		354
	6.35% Senior Notes due 2017	610		613
	6.00% Senior Notes due 2018	498		497
	9.625% Senior Notes due 2019	1,021		1,025
	5.125% Senior Notes due 2020	798		797
	4.50% Senior Notes due 2022	747		747
	6.50% Senior Notes due 2036	595		595
	6.80% Senior Notes due 2037	298		298
	7.00% Senior Notes due 2038	497		497
	9.875% Senior Notes due 2039	247		247
	6.75% Senior Notes due 2040	596		596
	5.95% Senior Notes due 2042	545		545
	4.82% secured borrowing	102		132
	Capital and other lease obligations	153		118
	Other	74		32
		7,134		7,637
	Less amounts due in one year	73		588
	Long-term debt	$	7,061	$	7,049
Schedule of maturities of long-term debt	'
	The following is a summary of scheduled Long-term Debt maturities by year (dollars in millions):
	2014	$	73
	2015	66
	2016	410
	2017	673
	2018	512
	Thereafter	5,400
		$	7,134

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair value and carrying value of Long-term Debt	'
	The fair value and carrying value of our senior notes were as follows:
		December 31,
	(Dollars in millions)	2013		2012
	Fair value	$	7,580	$	8,368
	Carrying value	6,805		7,355

Derivative_Instruments_Tables

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Fair Values of Outstanding Derivative Instruments	'
	The fair values of outstanding derivative instruments are summarized as follows:
		December 31,
	(Dollars in millions)	2013			2012			Classifications
	Derivative assets not designated as hedges:
	Foreign currency forward contracts	$	5		$	5		Other Current Assets
	Derivative liabilities not designated as hedges:
	Foreign currency forward contracts	(6		)	(20		)	Other Current Liabilities
	Cross-currency swap contracts	(21		)	(34		)	Other Liabilities

Shareholders_Equity_Tables

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Changes in Issued and Treasury shares	'
	Changes in our Issued and Treasury shares during the years ended December 31, 2013, 2012 and 2011 were as follows:
	(Shares in millions)	Issued			Treasury
	Balance at December 31, 2010	758			(23	)
	Shares issued for acquisitions	5			3
	Equity awards granted, vested and exercised	—			4
	Shares issued for warrants	2			—
	Balance at December 31, 2011	765			(16	)
	Shares issued for acquisitions	—			3
	Equity awards granted, vested and exercised	—			4
	Shares issued for warrants	5			—
	Shares issued for internal restructuring	70			(70	)
	Balance at December 31, 2012	840			(79	)
	Equity awards granted, vested and exercised	—			6
	Balance at December 31, 2013	840			(73	)
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	The following table presents the changes in our accumulated other comprehensive income by component for the year ended December 31, 2013:
	(Dollars in millions)	Currency Translation Adjustment				Defined Benefit Pension			Deferred Loss on Derivatives			Total
	Balance at January 1, 2013	213				(40		)	(10		)	163
	Other comprehensive loss before reclassifications	(316		)		—			—			(316		)
	Reclassifications	(37		)		2			1			(34		)
	Net activity	(353		)		2			1			(350		)
	Balance at December 31, 2013	$	(140	)		$	(38	)	$	(9	)	$	(187	)

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	'
	We recognized the following employee share-based compensation expense during each of the years ended December 31, 2013, 2012 and 2011:
		Year Ended December 31,
	(Dollars in millions)	2013				2012			2011
	Share-based compensation	$	66			$	76		$	87
	Related tax benefit	11				27			30
Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments	'
	A summary of option activity for the year ended December 31, 2013, is presented below:
		Options			Weighted			Weighted		Aggregate
					Average Exercise			Average		Intrinsic
					Price			Remaining		Value
								Term
		(In thousands)								(In thousands)
	Outstanding at December 31, 2012	10,403			$	9.21		2.54 years		$	31,717
	Granted	—			—
	Exercised	(2,447	)		8.89
	Forfeited	—			—
	Outstanding and Vested at December 31, 2013	7,956			9.31			2.01 years		54,775
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	'
	A summary of RSA and RSU activity for the year ended December 31, 2013 is presented below:
			RSA			Weighted			RSU			Weighted
						Average Grant Date						Average
						Fair Value						Grant Date
												Fair Value
			(In thousands)						(In thousands)
	Non-Vested at December 31, 2012		2,402			$	18.93		3,051			$	18.63
	Granted		2,397			14.04			2,305			12.93
	Vested		(1,178	)		21.44			(1,870	)		19.2
	Forfeited		(410	)		15.4			(349	)		17.23
	Non-Vested at December 31, 2013		3,211			14.8			3,137			14.26
Schedule of Nonvested Performance-based Units Activity	'
	A summary of performance unit activity for the years ended December 31, 2013 is presented below:
		Performance Units			Weighted Average Grant Date Fair Value
		(In thousands)
	Non-vested at December 31, 2012	1,402			$	23.14
	Granted	1,905			10.81
	Vested	(700	)		12.04
	Forfeited	(696	)		20.03
	Non-vested at December 31, 2013	1,911			16.05

Retirement_and_Employee_Benefi1

Retirement and Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Schedule of weighted average assumption rates	'
	The weighted average assumption rates used for benefit obligations were as follows:
		Year Ended December 31,
		2013	2012
	Discount rate:
	United States plans	1.00% - 4.75%	1.00% - 4.00%
	International plans	3.50% - 7.00%	1.36% - 7.00%
	Rate of compensation increase:
	United States plans	—	—
	International plans	3.00% - 4.50%	2.00% - 4.10%

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax (Provision) Benefit	'
	Our income tax benefit (provision) from continuing operations consisted of the following:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Total current provision	$	(177	)	$	(475	)	$	(421	)
	Total deferred benefit (provision)	33			13			(121		)
		$	(144	)	$	(462	)	$	(542	)
Reconciliation of Tax (Provision) Benefit at the Statutory Federal Income Tax Rate	'
	The difference between the income tax provision at the Swiss federal income tax rate and the income tax provision attributable to Income Before Income Taxes for each of the three years ended December 31, 2013, 2012 and 2011 is analyzed below:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Swiss federal income tax rate at 7.83%	$	13		$	23		$	(59	)
	Tax on earnings subject to rates different than the Swiss federal income tax rate	89			(341		)	(377		)
	Change in valuation allowance	(264		)	(108		)	(29		)
	Change in uncertain tax positions	18			(36		)	(77		)
		$	(144	)	$	(462	)	$	(542	)
Schedule of Deferred Tax Assets and Liabilities	'
	The components of the net deferred tax asset (liability) attributable to continuing operations were as follows:
		December 31,
	(Dollars stated in millions)	2013			2012
	Net operating losses carryforwards	$	647		$	396
	Accrued liabilities and reserves	239			229
	Tax credit carryforwards	115			117
	Employee benefits	54			61
	Inventory	58			61
	Other	80			112
	Valuation allowance	(571		)	(317		)
	Total deferred tax assets	622			659
	Deferred tax liabilities:
	Property, plant and equipment	(478		)	(501		)
	Intangible assets	(238		)	(245		)
	Deferred Income	(6		)	(27		)
	Other	(20		)	(32		)
	Total deferred tax liabilities	(742		)	(805		)
	Net deferred tax assets (liabilities)	$	(120	)	$	(146	)
Schedule of Unrecognized Tax Benefits Roll Forward	'
	A tabular reconciliation of the total amounts of uncertain tax positions at the beginning and end of the period is as follows:
		Year Ended December 31,
	(Dollars stated in millions)	2013			2012			2011
	Balance at beginning of year	$	296		$	292		$	237
	Additions as a result of tax positions taken during a prior period	64			8			7
	Reductions as a result of tax positions taken during a prior period	(12		)	(1		)	(8		)
	Additions as a result of tax positions taken during the current period	31			29			65
	Reductions relating to settlements with taxing authorities	(60		)	(14		)	(3		)
	Reductions as a result of a lapse of the applicable statute of limitations	(19		)	(19		)	(2		)
	Foreign exchange effects	(11		)	1			(4		)
	Balance at end of year	$	289		$	296		$	292
Summary of Income Tax Contingencies	'
	We are subject to income tax in many of the over 100 countries where we operate. As of December 31, 2013, the following table summarizes the tax years that remain subject to examination for the major jurisdictions in which we operate:
	Canada	2009 - 2013
	Mexico	2007 - 2013
	Russia	2011 - 2013
	Switzerland	2009 - 2013
	United States	2007 - 2013
	Venezuela	2008 - 2013

Commitments_Tables

Commitments (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Operating Leases of Lessee Disclosure	'
	Future minimum rental commitments under noncancellable operating leases are as follows (dollars in millions):
	2014	$	277
	2015	239
	2016	185
	2017	137
	2018	109
	Thereafter	270
		$	1,217

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Financial information by segment	'
	Our operational performance is reviewed and managed on a geographic basis. We report the following regions, which are our operating segments, as separate, distinct reporting segments: North America; MENA/Asia Pacific; Europe/SSA/Russia; and Latin America. Financial information by segment is summarized below. Revenues are attributable to countries based on the ultimate destination of the sale of products or performance of services. The accounting policies of the segments are the same as those described in the summary of significant accounting policies.
		Year Ended December 31, 2013
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations (a)				Amortization				2013
	North America	$	6,390		$	820			$	424	$	434	$	7,720
	MENA/Asia Pacific	3,344			(96		)		396		526		5,328
	Europe/SSA/Russia	2,693			288				286		305		4,346
	Latin America (b)	2,836			306				276		247		4,247
		15,263			1,318				1,382		1,512		21,641
	Corporate and Research and Development	—			(466		)		20		63		336
	U.S. Government Investigation Loss	—			(153		)		—		—		—
	Other Items (c)	—			(176		)		—		—		—
	Total	$	15,263		$	523			$	1,402	$	1,575	$	21,977
		Year Ended December 31, 2012
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations (d)				Amortization				2012
	North America	$	6,824		$	1,078			$	412	$	744	$	8,223
	MENA/Asia Pacific	2,795			34				352		657		5,108
	Europe/SSA/Russia	2,519			315				255		341		4,418
	Latin America	3,077			395				238		384		4,348
		15,215			1,822				1,257		2,126		22,097
	Corporate and Research and Development	—			(453		)		25		51		698
	Goodwill and Equity Investment Impairment	—			(793		)		—		—		—
	U.S. Government Investigation Loss	—			(100		)		—		—		—
	Other Items (e)	—			(178		)		—		—		—
	Total	$	15,215		$	298			$	1,282	$	2,177	$	22,795
		Year Ended December 31, 2011
	(Dollars in millions)	Net			Income				Depreciation		Capital		Assets at
		Operating			from				and		Expenditures		December 31,
		Revenues			Operations				Amortization				2011
	North America	$	6,023		$	1,259			$	357	$	416	$	7,672
	MENA/Asia Pacific (f)	2,441			25				328		504		5,264
	Europe/SSA/Russia	2,298			287				233		226		3,963
	Latin America	2,226			254				198		329		3,517
		12,988			1,825				1,116		1,475		20,416
	Corporate and Research and Development	—			(422		)		20		49		635
	Other Items (g)	—			(96		)		—		—
	Total	$	12,988		$	1,307			$	1,136	$	1,524	$	21,051
	(a)	For the year ended December 31, 2013, we recognized a charge for bad debt expense of $98 million attributable to our reporting segments as follows: $59 million in Latin America, $27 million in MENA/Asia Pacific, $10 million for Europe/SSA/Russia, and $2 million in North America. See footnote (b) below for additional details for the bad debt expense charge in Latin America of $59 million. During 2013, we recognized a charge for excess and obsolete inventory of $62 million attributable to each reporting segment as follows: $35 million in North America, $7 million in MENA/Asia Pacific, $13 million in Europe/SSA/Russia and $7 million in Latin America.
	(b)	On December 17, 2013, we accepted bonds with a face value of $127 million from PDVSA in full settlement of $127 million in trade receivables. Upon receipt, we immediately sold these bonds in a series of transactions recognizing a loss of $58 million.
	(c)	Other items for 2013 include $67 million of professional fees and expenses for U.S. government investigations and the remediation of our material weakness related to income taxes, $94 million of severance and $15 million of other items, which include gains totaling $24 million primarily related to the sale of our 38.5% equity interest in Borets as well as our industrial screen business.
	(d)	During 2012, we recognized a charge for excess and obsolete inventory of $53 million attributable to each reporting segment as follows: $21 million in North America, $16 million in MENA/Asia Pacific, $11 million in Europe/SSA/Russia and $5 million in Latin America. We also recognized a charge of $30 million to adjust the carrying value of our guar inventory, a component of certain drilling fluids, to the lower of cost or market, all of which was attributable to the North America reporting segment.
	(e)	Other Items for 2012 include income tax restatement and material weakness remediation expenses of $103 million, $13 million of costs incurred in connection with U.S. government investigations, $11 million of non-recurring fees and expenses associated with our 2012 debt consent solicitation and severance, exit and other charges of $79 million, offset by a $28 million gain related to the sale of our subsea controls business.
	(f)	In early 2011, our operations in Libya were disrupted by civil unrest. Due to the hostilities, we were unable to physically verify the existence or condition of the majority of our assets in country for most of 2011 and the information available to us about these assets evolved during the year. Additionally, due to international sanctions against all entities affiliated with the Libyan government, we were unable to pursue collections of accounts receivable from a significant portion of our Libyan customers. In the fourth quarter, hostilities subsided and limited company personnel were able to re-enter the country. Additionally, we were able to engage in discussions with our customers. Following an examination of our Libyan assets and evaluation of our accounts receivable from Libyan customers, we recognized an expense of $59 million primarily to establish a reserve for receivables, machinery and equipment and inventory in Libya.
	(g)	Other Items for 2011 includes income tax restatement and material weakness remediation expenses of $22 million, $10 million of costs incurred in connection with U.S. government investigations related to Foreign Corrupt Practices Act and United Nations oil-for-food program governing sales of goods into Iraq matters, $9 million associated with the termination of a corporate consulting contract, and severance, exit and other charges of $55 million.
Composition of consolidated revenues by product line	'
	Products and Services
	We are a diversified international energy service and manufacturing company that provides a variety of services and equipment to the exploration, production and transmission sectors of the oil and natural gas industry. The composition of our consolidated revenues by product service line group is as follows:
		Year Ended December 31,
		2013		2012			2011
	Formation Evaluation and Well Construction	61	%	56	%		57	%
	Completion and Production	39		44			43
	Total	100	%	100	%		100	%
Financial information by geographic area	'
	Geographic Areas
	Financial information by geographic area for each of the three years ended December 31, 2013, is summarized below. Revenues from customers and long-lived assets in Switzerland were insignificant in each of the years presented. Long-lived assets exclude goodwill and intangible assets as well as deferred tax assets of $33 million, $59 million and $145 million at December 31, 2013, 2012 and 2011, respectively.
		Revenues from Unaffiliated Customers									Long-lived Assets
	(Dollars in millions)	2013			2012				2011		2013		2012		2011
	United States	$	5,146		$	5,465			$	4,714	$	2,272	$	2,524	$	2,353
	Canada	1,243			1,359				1,309		438		471		435
	Mexico	959			1,274				789		226		231		222
	Other Countries	7,915			7,117				6,176		5,899		5,845		5,041
		$	15,263		$	15,215			$	12,988	$	8,835	$	9,071	$	8,051

Consolidating_Financial_Statem1

Consolidating Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Consolidating Balance Sheet	'
	Condensed Consolidating Balance Sheet
	December 31, 2013
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Current Assets:
	Cash and Cash Equivalents	$	—		$	—		$	—		$	435		$	—		$	435
	Other Current Assets	57			5			415			8,270			(408		)	8,339
	Total Current Assets	57			5			415			8,705			(408		)	8,774
	Equity Investments in Affiliates	8,663			11,742			8,065			6,466			(34,936		)	—
	Equity Held in Parent	—			—			10			27			(37		)	—
	Intercompany Receivables, Net	—			—			—			7,304			(7,304		)	—
	Other Assets	7			41			17			13,138			—			13,203
	Total Assets	$	8,727		$	11,788		$	8,507		$	35,640		$	(42,685	)	$	21,977
	Current Liabilities:
	Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	1,445		$	23		$	198		$	—		$	1,666
	Accounts Payable and Other Current Liabilities	312			129			—			4,000			(408		)	4,033
	Total Current Liabilities	312			1,574			23			4,198			(408		)	5,699
	Long-term Debt	—			5,891			986			184			—			7,061
	Intercompany Payables, Net	243			6,755			306			—			(7,304		)	—
	Other Long-term Liabilities	10			97			2			905			—			1,014
	Total Liabilities	565			14,317			1,317			5,287			(7,712		)	13,774
	Weatherford Shareholders’ Equity	8,162			(2,529		)	7,190			30,312			(34,973		)	8,162
	Noncontrolling Interests	—			—			—			41			—			41
	Total Liabilities and Shareholders’ Equity	$	8,727		$	11,788		$	8,507		$	35,640		$	(42,685	)	$	21,977
	Condensed Consolidating Balance Sheet
	December 31, 2012
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Current Assets:
	Cash and Cash Equivalents	$	—		$	—		$	—		$	300		$	—		$	300
	Other Current Assets	5			5			256			8,682			(219		)	8,729
	Total Current Assets	5			5			256			8,982			(219		)	9,029
	Equity Investments in Affiliates	9,184			14,790			7,675			8,458			(40,107		)	—
	Equity Held in Parent	—			—			10			172			(182		)	—
	Intercompany Receivables, Net	—			1,872			—			—			(1,872		)	—
	Other Assets	17			45			14			13,690			—			13,766
	Total Assets	$	9,206		$	16,712		$	7,955		$	31,302		$	(42,380	)	$	22,795
	Current Liabilities:
	Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	1,439		$	26		$	120		$	—		$	1,585
	Accounts Payable and Other Current Liabilities	8			246			—			4,089			(218		)	4,125
	Total Current Liabilities	8			1,685			26			4,209			(218		)	5,710
	Long-term Debt	—			5,895			1,019			135			—			7,049
	Intercompany Payables, Net	400			—			477			995			(1,872		)	—
	Other Long-term Liabilities	12			76			3			1,127			—			1,218
	Total Liabilities	420			7,656			1,525			6,466			(2,090		)	13,977
	Weatherford Shareholders’ Equity	8,786			9,056			6,430			24,804			(40,290		)	8,786
	Noncontrolling Interests	—			—			—			32			—			32
	Total Liabilities and Shareholders’ Equity	$	9,206		$	16,712		$	7,955		$	31,302		$	(42,380	)	$	22,795
Condensed Consolidating Statement of Operations	'
	Condensed Consolidating Statement of Operations
	Year Ended December 31, 2013
	(Dollars in millions)
		Weatherford Switzerland			Weatherford Bermuda			Weatherford Delaware			Other			Eliminations			Consolidation
											Subsidiaries
	Revenues	$	—		$	—		$	—		$	15,263		$	—		$	15,263
	Costs and Expenses	(50		)	(139		)	(3		)	(14,548		)	—			(14,740		)
	Operating Income (Loss)	(50		)	(139		)	(3		)	715			—			523
	Other Income (Expense):
	Interest Expense, Net	—			(430		)	(61		)	(25		)	—			(516		)
	Intercompany Charges, Net	(53		)	49			(337		)	341			—			—
	Equity in Subsidiary Income	(242		)	30			461			—			(249		)	—
	Other, Net	—			(31		)	(2		)	(144		)	—			(177		)
	Income (Loss) Before Income Taxes	(345		)	(521		)	58			887			(249		)	(170		)
	(Provision) Benefit for Income Taxes	—			—			145			(289		)	—			(144		)
	Net Income (Loss)	(345		)	(521		)	203			598			(249		)	(314		)
	Noncontrolling Interests	—			—			—			(31		)	—			(31		)
	Net Income (Loss) Attributable to Weatherford	$	(345	)	$	(521	)	$	203		$	567		$	(249	)	$	(345	)
	Comprehensive Income (Loss) Attributable to Weatherford	$	(695	)	$	(788	)	$	39		$	214		$	535		$	(695	)
	Condensed Consolidating Statement of Operations
	Year Ended December 31, 2012
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Revenues	$	—		$	—		$	—		$	15,215		$	—		$	15,215
	Costs and Expenses	(59		)	(114		)	(5		)	(14,739		)	—			(14,917		)
	Operating Income (Loss)	(59		)	(114		)	(5		)	476			—			298
	Other Income (Expense):
	Interest Expense, Net	—			(401		)	(69		)	(16		)	—			(486		)
	Intercompany Charges, Net	(28		)	53			(233		)	208			—			—
	Equity in Subsidiary Income	(689		)	(701		)	(94		)	—			1,484			—
	Other, Net	(2		)	(34		)	—			(64		)	—			(100		)
	Income (Loss) Before Income Taxes	(778		)	(1,197		)	(401		)	604			1,484			(288		)
	(Provision) Benefit for Income Taxes	—			—			107			(569		)	—			(462		)
	Net Income (Loss)	(778		)	(1,197		)	(294		)	35			1,484			(750		)
	Noncontrolling Interests	—			—			—			(28		)	—			(28		)
	Net Income (Loss) Attributable to Weatherford	$	(778	)	$	(1,197	)	$	(294	)	$	7		$	1,484		$	(778	)
	Comprehensive Income (Loss) Attributable to Weatherford	$	(695	)	$	(1,197	)	$	(294	)	$	90		$	1,401		$	(695	)
	Condensed Consolidating Statement of Operations
	Year Ended December 31, 2011
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Revenues	$	—		$	—		$	—		$	12,988		$	—		$	12,988
	Costs and Expenses	(48		)	(3		)	(3		)	(11,627		)	—			(11,681		)
	Operating Income (Loss)	(48		)	(3		)	(3		)	1,361			—			1,307
	Other Income (Expense):
	Interest Expense, Net	—			(353		)	(90		)	(10		)	—			(453		)
	Intercompany Charges, Net	(61		)	16			(177		)	222			—			—
	Equity in Subsidiary Income	299			281			802			—			(1,382		)	—
	Other, Net	—			(33		)	(1		)	(73		)	—			(107		)
	Income (Loss) Before Income Taxes	190			(92		)	531			1,500			(1,382		)	747
	(Provision) Benefit for Income Taxes	(1		)	—			65			(606		)	—			(542		)
	Net Income (Loss)	189			(92		)	596			894			(1,382		)	205
	Noncontrolling Interests	—			—			—			(16		)	—			(16		)
	Net Income (Loss) Attributable to Weatherford	$	189		$	(92	)	$	596		$	878		$	(1,382	)	$	189
	Comprehensive Income (Loss) Attributable to Weatherford	$	67		$	(92	)	$	596		756			(1,260		)	67
Condensed Consolidating Statement of Cash Flows	'
	Condensed Consolidating Statement of Cash Flows
	Year Ended December 31, 2013
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Cash Flows from Operating Activities:
	Net Income (Loss)	$	(345	)	$	(521	)	$	203		$	598		$	(249	)	$	(314	)
	Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
	Charges from Parent or Subsidiary	53			(49		)	337			(341		)	—			—
	Equity in (Earnings) Loss of Affiliates	242			(30		)	(461		)	—			249			—
	Deferred Income Tax Provision (Benefit)	—			—			28			(61		)	—			(33		)
	Other Adjustments	(48		)	748			470			406			—			1,576
	Net Cash Provided (Used) by Operating Activities	(98		)	148			577			602			—			1,229
	Cash Flows from Investing Activities:
	Capital Expenditures for Property, Plant and Equipment	—			—			—			(1,575		)	—			(1,575		)
	Acquisitions of Businesses, Net of Cash Acquired	—			—			—			(8		)	—			(8		)
	Acquisition of Intellectual Property	—			—			—			(9		)	—			(9		)
	Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			—			—			—
	Proceeds from Sale of Assets and Businesses, Net	—			—			—			488			—			488
	Capital Contribution to Subsidiary	—			(1,181		)	—			—			1,181			—
	Net Cash Provided (Used) by Investing Activities	—			(1,181		)	—			(1,104		)	1,181			(1,104		)
	Cash Flows from Financing Activities:
	Borrowings (Repayments) Short-term Debt, Net	—			550			(4		)	66			—			612
	Borrowings (Repayments) Long-term Debt, Net	—			(544		)	(30		)	(26		)	—			(600		)
	Borrowings (Repayments) Between Subsidiaries, Net	100			1,027			(565		)	(562		)	—			—
	Proceeds from Capital Contributions	—			—			—			1,181			(1,181		)	—
	Other, Net	(2		)	—			22			(26		)	—			(6		)
	Net Cash Provided (Used) by Financing Activities	98			1,033			(577		)	633			(1,181		)	6
	Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			4			—			4
	Net Increase in Cash and Cash Equivalents	—			—			—			135			—			135
	Cash and Cash Equivalents at Beginning of Year	—			—			—			300			—			300
	Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	435		$	—		$	435
	Condensed Consolidating Statement of Cash Flows
	Year Ended December 31, 2012
	(Dollars in millions)
		Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
		Switzerland			Bermuda			Delaware			Subsidiaries
	Cash Flows from Operating Activities:
	Net Income (Loss)	$	(778	)	$	(1,197	)	$	(294	)	$	35		$	1,484		$	(750	)
	Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
	Charges from Parent or Subsidiary	28			(53		)	233			(208		)	—			—
	Equity in (Earnings) Loss of Affiliates	689			701			94			—			(1,484		)	—
	Deferred Income Tax Provision (Benefit)	—			—			10			(23		)	—			(13		)
	Other Adjustments	50			35			472			1,427			—			1,984
	Net Cash Provided (Used) by Operating Activities	(11		)	(514		)	515			1,231			—			1,221
	Cash Flows from Investing Activities:
	Capital Expenditures for Property, Plant and Equipment	—			—			—			(2,177		)	—			(2,177		)
	Acquisitions of Businesses, Net of Cash Acquired	(30		)	—			—			(135		)	—			(165		)
	Acquisition of Intellectual Property	—			—			—			(17		)	—			(17		)
	Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			(8		)	—			(8		)
	Proceeds from Sale of Assets and Businesses, Net	—			—			—			61			—			61
	Capital Contribution to Subsidiary	(30		)	(85		)	(118		)	118			115			—
	Net Cash Provided (Used) by Investing Activities	(60		)	(85		)	(118		)	(2,158		)	115			(2,306		)
	Cash Flows from Financing Activities:
	Borrowings (Repayments) Short-term Debt, Net	—			(108		)	—			95			—			(13		)
	Borrowings (Repayments) Long-term Debt, Net	—			1,295			(296		)	4			—			1,003
	Borrowings (Repayments) Between Subsidiaries, Net	71			(588		)	(101		)	618			—			—
	Proceeds from Capital Contributions	—			—			—			115			(115		)	—
	Other, Net	—			—			—			22			—			22
	Net Cash Provided (Used) by Financing Activities	71			599			(397		)	854			(115		)	1,012
	Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			2			—			2
	Net Increase in Cash and Cash Equivalents	—			—			—			(71		)	—			(71		)
	Cash and Cash Equivalents at Beginning of Year	—			—			—			371			—			371
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	300		$	—		$	300
Condensed Consolidating Statement of Cash Flows
Year Ended December 31, 2011
(Dollars in millions)
	Weatherford			Weatherford			Weatherford			Other			Eliminations			Consolidation
	Switzerland			Bermuda			Delaware			Subsidiaries
Cash Flows from Operating Activities:
Net Income (Loss)	$	189		$	(92	)	$	596		$	894		$	(1,382	)	$	205
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	61			(16		)	177			(222		)	—			—
Equity in (Earnings) Loss of Affiliates	(299		)	(281		)	(802		)	—			1,382			—
Deferred Income Tax Benefit	—			—			(65		)	186			—			121
Other Adjustments	3			(73		)	(31		)	627			—			526
Net Cash Provided (Used) by Operating Activities	(46		)	(462		)	(125		)	1,485			—			852
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(1,524		)	—			(1,524		)
Acquisitions of Businesses, Net of Cash Acquired	(4		)	—			—			(140		)	—			(144		)
Acquisition of Intellectual Property	—			—			—			(8		)	—			(8		)
Purchase of Equity Investment in Unconsolidated Affiliates	—			—			—			(14		)	—			(14		)
Proceeds from Sale of Assets and Businesses, Net	—			—			—			31			—			31
Capital Contribution to Subsidiary	(4		)	(25		)	4			—			25			—
Other Investing Activities	—			—			—			(15		)	—			(15		)
Net Cash Provided (Used) by Investing Activities	(8		)	(25		)	4			(1,670		)	25			(1,674		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			996			—			(4		)	—			992
Borrowings (Repayments) Long-term Debt, Net	—			—			(18		)	(176		)	—			(194		)
Borrowings (Repayments) Between Subsidiaries, Net	54			(623		)	127			442			—			—
Proceeds from Capital Contributions	—			—			—			25			(25		)	—
Other, Net	—			—			—			(21		)	—			(21		)
Net Cash Provided (Used) by Financing Activities	54			373			109			266			(25		)	777
Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—			—			—			—			—
Net Increase in Cash and Cash Equivalents	—			(114		)	(12		)	81			—			(45		)
Cash and Cash Equivalents at Beginning of Year	—			114			12			290			—			416
Cash and Cash Equivalents at End of Year	$	—		$	—		$	—		$	371		$	—		$	371

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Data	'
		2013 Quarters
	(Dollars in millions, except per share amounts)	First		Second			Third		Fourth			Total
	Revenues	$	3,837	$	3,868		$	3,820	$	3,738		$	15,263
	Gross Profit	831		742			784		604			2,961
	Net Income (Loss) Attributable to Weatherford	22		(118		)	22		(271		)	(345		)
	Basic Earnings (Loss) Per Share (a)	0.03		(0.15		)	0.03		(0.35		)	(0.45		)
	Diluted Earnings (Loss) Per Share (a)	0.03		(0.15		)	0.03		(0.35		)	(0.45		)
		2012 Quarters
	(Dollars in millions, except per share amounts)	First		Second			Third		Fourth			Total
	Revenues	$	3,591	$	3,747		$	3,819	$	4,058		$	15,215
	Gross Profit	891		776			852		841			3,360
	Net Income (Loss) Attributable to Weatherford	123		(849		)	70		(122		)	(778		)
	Basic Earnings (Loss) Per Share	0.16		(1.11		)	0.09		(0.16		)	(1.02		)
	Diluted Earnings (Loss) Per Share	0.16		(1.11		)	0.09		(0.16		)	(1.02		)

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Feb. 28, 2009	Feb. 28, 2009	Feb. 28, 2009	Dec. 31, 2011
	USD ($)	USD ($)	USD ($)	CHF	CHF		Weatherford Bermuda [Member]	Weatherford Switzerland [Member]	Deconsolidated Joint Venture [Member]
	country		joint_venture				USD ($)	CHF	USD ($)
Subsidiary or Equity Method Investee [Line Items]	'	'	'	'	'	'	'	'	'
Number of countries operated in (over 100 countries)	100	'	'	'	'	'	'	'	'
Years in operation	'50 years	'	'	'	'	'	'	'	'
Par value (in dollars or CHF per share)	'	'	'	1.16	1.16	'	$1	1.16	'
Amount of Weatherford Bermunda shares exchanged for one Weatherford Switzerland share	'	'	'	'	'	1	'	'	'
Principles of Consolidation	'	'	'	'	'	'	'	'	'
Maximum exposure to loss associated with variable interest	$46	'	'	'	'	'	'	'	'
Guaranteed debt on behalf of variable interest entities	118	'	'	'	'	'	'	'	'
Deconsolidation	'	'	'	'	'	'	'	'	'
Number of joint ventures deconsolidated	'	'	3	'	'	'	'	'	'
Equity method investments	296	646	'	'	'	'	'	'	43
Noncontrolling interests	41	32	'	'	'	'	'	'	34
Foreign Currency	'	'	'	'	'	'	'	'	'
Foreign currency transaction gain (loss)	($66)	($85)	($84)	'	'	'	'	'	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Major Customers and Credit Risk) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Concentration Risk [Line Items]	'	'	'
Accounts receivable, current	$3,594	$3,885	'
Increase (decrease) in accounts receivable	12	705	623
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Petroleos de Venezuela, S.A. [Member]	'	'	'
Concentration Risk [Line Items]	'	'	'
Accounts receivable, current	326	'	'
Gain (loss) on sale of bonds	-58	'	'
Increase (decrease) in accounts receivable	-127	'	'
Bond face amount	127	'	'
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Petroleos Mexicanos [Member]	'	'	'
Concentration Risk [Line Items]	'	'	'
Accounts receivable, current	$437	'	'
Accounts Receivable [Member] | Latin America [Member] | Geographic Concentration Risk [Member]	'	'	'
Concentration Risk [Line Items]	'	'	'
Concentration percentage	38.00%	'	'
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]	'	'	'
Concentration Risk [Line Items]	'	'	'
Concentration percentage	10.00%	10.00%	10.00%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Property, Plant and Equipment - Estimated Useful Lives) (Details) (USD $)	12 Months Ended
In Billions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]	'	'	'
Depreciation	$1.30	$1.20	$1
Buildings and leasehold improvements [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'10 years	'	'
Buildings and leasehold improvements [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'40 years	'	'
Rental and service equipment [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'2 years	'	'
Rental and service equipment [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'20 years	'	'
Machinery and other [Member] | Minimum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'2 years	'	'
Machinery and other [Member] | Maximum [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, estimated useful life	'12 years	'	'

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (Intangible Assets) (Details)	12 Months Ended
	Dec. 31, 2013
Minimum [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible asset useful life	'2 years
Maximum [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Intangible asset useful life	'20 years

Summary_of_Significant_Account7

Summary of Significant Accounting Policies (Devaluation of Venezuelan Bolivar) (Details)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2013	Feb. 13, 2013	Feb. 12, 2013	Dec. 31, 2013
	Venezuelan Bolivar [Member]	Venezuelan Bolivar [Member]	Venezuelan Bolivar [Member]	Venezuelan Bolivar [Member]	Venezuela [Member]
	USD ($)	USD ($)	VEB	VEB	USD ($)
Impact of Foreign Currency Devaluation [Line Items]	'	'	'	'	'
Currency devaluation, exchange rate (in dollars per VEB)	'	'	6.3	4.3	'
Currency devaluation expense	$100	$100	'	'	'
Net investment in foreign country	'	'	'	'	666
Net monetary asset position	'	'	'	'	$238

Summary_of_Significant_Account8

Summary of Significant Accounting Policies (Earnings per Share - Weighted Average Shares Outstanding) (Details)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Basic weighted average shares outstanding	772	765	753
Dilutive effect of:	'	'	'
Warrants	0	0	2
Stock options and restricted shares	0	0	5
Diluted weighted average shares outstanding	772	765	760

Summary_of_Significant_Account9

Summary of Significant Accounting Policies (Earnings Per Share - Antidilutive Shares) (Details)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Anti-dilutive potential shares	5	4	5

Business_Combinations_and_Disp1

Business Combinations and Dispositions (Acquisitions) (Details) (USD $)	12 Months Ended			1 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	31-May-12	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
				Company that Designs and Produces Well Completion Tools [Member]	Company that Designs and Produces Well Completion Tools [Member]	Other Businesses [Member]	Other Businesses [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Cash consideration in business combination, net of cash acquired	$8	$165	$144	'	'	$144	$158
Cash consideration in business combination, gross	'	'	'	29	'	'	'
Number of equity shares issued in business combination	'	'	'	3	'	'	8
Value assigned to equity shares issued in business combination	'	'	'	39	'	'	134
Note receivable settled	'	'	'	16	'	'	'
Contingent consideration	'	'	'	'	$8	'	'

Business_Combinations_and_Disp2

Business Combinations and Dispositions (Equity Method Investments) (Details) (Borets [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Oct. 07, 2013
Borets [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Equity method investment, ownership percentage	'	38.50%
Equity method investment, net sales proceeds	$400	'
Equity method investment, net sales proceeds, cash	359	'
Amount of consideration received, noncash	30	'
Amount owed deducted from total consideration	11	'
Promissory note term	'3 years	'
Gain (loss) on sale of equity investments	$18	'

Business_Combinations_and_Disp3

Business Combinations and Dispositions (Dispositions) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'
Gain (loss) on sale of business	$24	$28	$0
Industrial Screen Business [Member]	'	'	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'
Amount of consideration received, cash and noncash	137	'	'
Gain (loss) on sale of business	6	'	'
Assets sold, cash	54	'	'
Assets sold, accounts receivable	36	'	'
Assets sold, inventory	37	'	'
Assets sold, other assets	93	'	'
Assets sold, liabilities	69	'	'
Assets sold, current liabilities	60	'	'
Subsea Controls Business [Member]	'	'	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'
Amount of consideration received, noncash	'	173	'
Gain (loss) on sale of business	'	28	'
Assets sold, inventory	'	38	'
Assets sold, accounts receivable and other current assets	'	39	'
Assets sold, property plant and equipment	'	5	'
Assets sold, goodwill	'	74	'
Assets sold, liabilities	'	13	'
Gain (loss) on sale of business, net of tax	'	$25	'

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Schedule of Cash Paid for Interest and Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]	'	'	'
Interest paid, net of capitalized interest	$525	$478	$461
Income taxes paid, net of refunds	$442	$443	$291

Percentage_of_Completion_Contr1

Percentage of Completion Contracts (Details) (USD $)	3 Months Ended		12 Months Ended		3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
	Iraq [Member]	Iraq [Member]	Iraq [Member]	Iraq [Member]	Mexico [Member]
Billed and Unbilled Contract Claims Subject to Uncertainty [Line Items]	'	'	'	'	'
Loss on contracts	$148	$85	$232	$100	'
Estimated loss on long term construction contract	307	'	307	'	'
Contracts receivable, claims and uncertain amounts	36	'	36	68	'
Liquidated damages on construction contract	'	'	82	17	'
Contracts revenue	'	'	'	'	$63

Accounts_Receivable_Factoring_

Accounts Receivable Factoring (Details) (Mexico [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Mexico [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Accounts receivable sold, carrying value	$215	$177	$65
Proceeds from sale of accounts receivable	204	163	64
Gain (loss) on sale of accounts receivable	($3)	($1)	($1)

Inventories_Net_Schedule_of_In

Inventories, Net (Schedule of Inventory) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Raw materials, components and supplies	$386	$461
Work in process	130	166
Finished goods	2,855	3,048
Total Inventory	$3,371	$3,675

Inventories_Net_Narrative_Deta

Inventories, Net (Narrative) (Details) (USD $)	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012
		Excessive Quantities and Obsolescence [Member]	Excessive Quantities and Obsolescence [Member]	Excessive Quantities and Obsolescence [Member]	Guar Inventory [Member]	Guar Inventory [Member]
					Lower of Cost or Market [Member]	Lower of Cost or Market [Member]
Inventory [Line Items]	'	'	'	'	'	'
Inventory write-down	$53	$64	$62	$53	$30	$30

Goodwill_Narrative_Details

Goodwill (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended			12 Months Ended				3 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2011	Jun. 30, 2012	Jun. 30, 2012
					Latin America [Member]	Latin America [Member]	Latin America [Member]	Latin America [Member]	Middle East/North Africa/Asia [Member]	Sub-Sahara Africa [Member]
Goodwill [Line Items]	'	'	'	'	'	'	'	'	'	'
Excess fair value percentage over carrying value	'	'	'	'	'	'	21.00%	'	'	'
Goodwill	'	$3,871	$3,709	$4,423	$354	$345	'	$384	'	'
Impairment loss	($589)	($589)	'	'	'	'	'	'	($512)	($77)

Goodwill_Schedule_of_Goodwill_

Goodwill (Schedule of Goodwill) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]	'	'	'
Beginning Balance	'	$3,871	$4,423
Acquisitions	'	2	105
Disposals	'	-41	-74
Impairment loss	-589	'	-589
Purchase price and other adjustments	'	'	-42
Foreign currency translation adjustments	'	-123	48
Ending Balance	'	3,709	3,871
North America [Member]	'	'	'
Goodwill [Roll Forward]	'	'	'
Beginning Balance	'	2,336	2,272
Acquisitions	'	0	59
Disposals	'	-23	-2
Impairment loss	'	'	'
Purchase price and other adjustments	'	1	-18
Foreign currency translation adjustments	'	-71	25
Ending Balance	'	2,243	2,336
Middle East/North Africa/Asia [Member]	'	'	'
Goodwill [Roll Forward]	'	'	'
Beginning Balance	'	226	743
Acquisitions	'	0	0
Disposals	'	-4	-7
Impairment loss	'	'	-512
Purchase price and other adjustments	'	0	0
Foreign currency translation adjustments	'	-13	2
Ending Balance	'	209	226
Europe/Sub-Sahara Africa/Russia [Member]	'	'	'
Goodwill [Roll Forward]	'	'	'
Beginning Balance	'	955	1,024
Acquisitions	'	2	46
Disposals	'	-13	-65
Impairment loss	'	'	-77
Purchase price and other adjustments	'	-3	0
Foreign currency translation adjustments	'	-29	27
Ending Balance	'	912	955
Latin America [Member]	'	'	'
Goodwill [Roll Forward]	'	'	'
Beginning Balance	'	354	384
Acquisitions	'	0	0
Disposals	'	-1	'
Impairment loss	'	'	'
Purchase price and other adjustments	'	2	-24
Foreign currency translation adjustments	'	-10	-6
Ending Balance	'	$345	$354

Other_Intangible_Assets_Schedu

Other Intangible Assets (Schedule of Intangible Assets) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$1,369	$1,424
Accumulated Amortization	-743	-658
Net	626	766
Acquired technology [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	417	423
Accumulated Amortization	-238	-207
Net	179	216
Licenses [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	261	254
Accumulated Amortization	-161	-139
Net	100	115
Patents [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	271	266
Accumulated Amortization	-129	-113
Net	142	153
Customer relationships and contracts [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	329	353
Accumulated Amortization	-163	-148
Net	166	205
Other [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	91	128
Accumulated Amortization	-52	-51
Net	$39	$77

Other_Intangible_Assets_Narrat

Other Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'
Carrying value of trademarks	$12	$19	'
Amortization expense	$120	$122	$102

Other_Intangible_Assets_Acquir

Other Intangible Assets (Acquired Intangible Assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	$15	$177
Acquired technology [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	1	0
Licenses [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	3	13
Patents [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	5	34
Customer relationships and contracts [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	4	100
Other [Member]	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Intangible assets additions	$2	$30

Other_Intangible_Assets_Amorti

Other Intangible Assets (Amortization of Intangible Assets) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'
2014	$116
2015	84
2016	69
2017	64
2018	$59

Equity_Investments_Schedule_of

Equity Investments (Schedule of Equity Investments) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Schedule of Equity Method Investments [Line Items]	'	'
Equity method investments	$296	$646
Borets [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Equity method investments	0	356
ProServ Group Inc. [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Equity method investments	168	170
Other Equity Investments [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Equity method investments	$128	$120

Equity_Investments_Narrative_D

Equity Investments (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Net Income (Loss) from equity investments	'	$37	$51	$20
Impairment of equity investments	$204	'	'	'
Borets [Member]	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Equity method investment, ownership percentage	'	'	38.50%	'
ProServ Group Inc. [Member]	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Equity method investment, ownership percentage	'	27.20%	25.70%	'

Shortterm_Borrowings_and_Curre2

Short-term Borrowings and Current Portion of Long-term Debt (Schedule of Short-term Debt) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Short-term Debt [Line Items]	'	'
Total short-term borrowings	$1,593	$997
Current portion of long-term debt	73	588
Short-term borrowings and current portion of long-term debt	1,666	1,585
Weighted average interest rate on short-term borrowings outstanding at end of year	1.71%	1.54%
Commercial paper program [Member]	'	'
Short-term Debt [Line Items]	'	'
Total short-term borrowings	292	888
Weighted average interest rate on short-term borrowings outstanding at end of year	1.00%	'
Revolving credit facility [Member]	'	'
Short-term Debt [Line Items]	'	'
Total short-term borrowings	772	0
Weighted average interest rate on short-term borrowings outstanding at end of year	1.40%	'
364-day term loan facility [Member]	'	'
Short-term Debt [Line Items]	'	'
Total short-term borrowings	300	0
Weighted average interest rate on short-term borrowings outstanding at end of year	1.40%	'
Other short-term bank loans [Member]	'	'
Short-term Debt [Line Items]	'	'
Total short-term borrowings	$229	$109

Shortterm_Borrowings_and_Curre3

Short-term Borrowings and Current Portion of Long-term Debt (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Apr. 30, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
			Revolving credit facility [Member]	Commercial paper program [Member]	Committed letters of credit [Member]	364-day term loan facility [Member]	364-day term loan facility [Member]	Domestic and foreign facility [Member]	Uncommitted letters of credit [Member]	Maximum [Member]
										Revolving credit facility [Member]
Short-term Debt [Line Items]	'	'	'	'	'	'	'	'	'	'
Credit agreement, maximum capacity	'	'	$2,250,000,000	'	'	'	$300,000,000	'	'	'
Weighted average interest rate on short-term borrowings outstanding at end of year	1.71%	1.54%	1.40%	1.00%	'	1.40%	'	4.10%	'	'
Ratio of indebtedness to net capital percent required	'	'	'	'	'	'	'	'	'	0.6
Letters of credit outstanding, amount	'	'	'	'	42,000,000	'	'	'	541,000,000	'
Short term borrowings	'	'	'	'	'	'	'	229,000,000	'	'
Performance bonds	$286,000,000	'	'	'	'	'	'	'	'	'

Longterm_Debt_Schedule_of_Long

Long-term Debt (Schedule of Long-term Debt) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total	$7,134	$7,637
Less amounts due in one year	73	588
Long-term debt	7,061	7,049
Senior Notes [Member] | Senior Notes, 5.15% due 2013 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	'	5.15%
Total	0	294
Senior Notes [Member] | Senior Notes, 4.95% due 2013 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	'	4.95%
Total	0	250
Senior Notes [Member] | Senior Notes, 5.50% due 2016 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	5.50%	'
Total	353	354
Senior Notes [Member] | Senior Notes, 6.35% due 2017 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	6.35%	'
Total	610	613
Senior Notes [Member] | Senior Notes, 6.00% due 2018 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	6.00%	'
Total	498	497
Senior Notes [Member] | Senior Notes, 9.625% due 2019 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	9.63%	'
Total	1,021	1,025
Senior Notes [Member] | Senior Notes, 5.125% due 2020 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	5.13%	'
Total	798	797
Senior Notes [Member] | Senior Notes, 4.50% due 2022 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	4.50%	'
Total	747	747
Senior Notes [Member] | Senior Notes, 6.50% due 2036 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	6.50%	'
Total	595	595
Senior Notes [Member] | Senior Notes, 6.80% due 2037 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	6.80%	'
Total	298	298
Senior Notes [Member] | Senior Notes, 7.00% due 2038 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	7.00%	'
Total	497	497
Senior Notes [Member] | Senior Notes, 9.875% due 2039 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	9.88%	'
Total	247	247
Senior Notes [Member] | Senior Notes, 6.75% due 2040 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	6.75%	'
Total	596	596
Senior Notes [Member] | Senior Notes, 5.95% due 2042 [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	5.95%	5.95%
Total	545	545
Secured Borrowings [Member] | Secured Borrowing, 4.82% [Member]	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate on debt	4.82%	'
Total	102	132
Capital and Other Lease Obligations [Member]	'	'
Debt Instrument [Line Items]	'	'
Total	153	118
Other Long-term Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Total	$74	$32

Longterm_Debt_Schedule_of_Debt

Long-term Debt (Schedule of Debt Maturity) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Long-term Debt, Fiscal Year Maturity [Abstract]	'	'
2014	$73	'
2015	66	'
2016	410	'
2017	673	'
2018	512	'
Thereafter	5,400	'
Total	$7,134	$7,637

Longterm_Debt_Narrative_Detail

Long-term Debt (Narrative) (Details) (USD $)	1 Months Ended								1 Months Ended	12 Months Ended
	Aug. 31, 2012	Dec. 31, 2013	Apr. 04, 2012	Dec. 31, 2013	Apr. 04, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 04, 2012	Aug. 31, 2012	Dec. 31, 2012
		Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Interest Expense [Member]	Interest Expense [Member]
			Senior Notes, 4.50% and 5.95% [Member]	Senior Notes, 4.50% due 2022 [Member]	Senior Notes, 4.50% due 2022 [Member]	Senior Notes, 5.95% due 2042 [Member]	Senior Notes, 5.95% due 2042 [Member]	Senior Notes, 5.95% due 2042 [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'	'
Total debt offering	'	'	$1,300,000,000	'	$750,000,000	'	'	$550,000,000	'	'
Stated interest rate on debt	'	'	'	4.50%	'	5.95%	5.95%	'	'	'
Consent solicitation, cash payment ratio	0.0025	'	'	'	'	'	'	'	'	'
Consent solicitation expense	'	'	'	'	'	'	'	'	18,000,000	'
Consent solicitation expense, other costs	'	'	'	'	'	'	'	'	'	$12,000,000
The weighted average effective interest rates	'	6.20%	'	'	'	'	'	'	'	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (Senior Notes [Member], Level 2 [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair Value of Long-term debt	$7,580	$8,368
Carrying Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair Value of Long-term debt	$6,805	$7,355

Derivative_Instruments_Schedul

Derivative Instruments (Schedule of Derivatives) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Foreign currency forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative asset, fair value, gross	$5	$5
Foreign currency forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liability, fair value, gross	-6	-20
Cross-currency swap contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liability, fair value, gross	-21	-34
Cross-currency swap contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative liability, fair value, gross	($21)	($34)

Derivative_Instruments_Narrati

Derivative Instruments (Narrative) (Details) (USD $)

1 Months Ended

12 Months Ended

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Jul. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Jul. 31, 2011

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate derivatives [Member]

Interest rate derivatives [Member]

Foreign currency forward contracts [Member]

Foreign currency forward contracts [Member]

Cross-currency swap contracts [Member]

Cross-currency swap contracts [Member]

Senior Notes, 6.35% due 2017 [Member]

Senior Notes, 6.35% due 2017 [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Fair Value Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Senior Notes [Member]

Senior Notes [Member]

Interest rate swaps [Member]

Fair Value Hedging [Member]

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Notional amount

'

'

'

$300,000,000

'

'

$635,000,000

$990,000,000

$168,000,000

$168,000,000

'

'

Stated interest rate on debt

'

'

'

'

'

'

'

'

'

'

6.35%

6.35%

Gain recognized upon termination

18,000,000

'

'

'

'

'

'

'

'

'

'

'

Deferred (gain) loss on discontinuation of fair value hedge

'

-42,000,000

-52,000,000

'

'

'

'

'

'

'

'

'

Unrealized gain (loss) on interest rate cash flow hedges

'

'

'

'

-11,000,000

-11,000,000

'

'

'

'

'

'

Estimated net fair value of foreign currency forward contracts resulting in a net (liability) asset

'

'

'

'

'

'

-1,000,000

-15,000,000

'

'

'

'

Derivative liability, fair value, gross

'

'

'

'

'

'

'

'

$21,000,000

$34,000,000

'

'

Shareholders_Equity_Schedule_o

Shareholders' Equity (Schedule of Shares Issued and Treasury Stock) (Details)	0 Months Ended		12 Months Ended
	Feb. 28, 2012	Mar. 04, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
			Issued [Member]	Issued [Member]	Issued [Member]	Treasury [Member]	Treasury [Member]	Treasury [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'
Beginning Balance	'	'	840,000,000	765,000,000	758,000,000	79,000,000	16,000,000	23,000,000
Shares issued for acquisitions	'	'	'	0	5,000,000	'	3,000,000	3,000,000
Equity awards granted, vested and exercised	'	'	0	0	0	6,000,000	4,000,000	4,000,000
Shares issued for warrants	494,000	1,700,000	'	5,000,000	2,000,000	'	0	0
Shares issued for internal restructuring	'	'	'	70,000,000	'	'	70,000,000	'
Ending Balance	'	'	840,000,000	840,000,000	765,000,000	73,000,000	79,000,000	16,000,000

Shareholders_Equity_Changes_in

Shareholders' Equity (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'
Beginning balance	$163	'	'
Other comprehensive loss before reclassifications	-316	'	'
Reclassifications	-34	'	'
Other Comprehensive Income (Loss)	-350	83	-122
Ending balance	-187	163	'
Gain (loss) on sale of business	24	28	0
Currency Translation Adjustment [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'
Beginning balance	213	'	'
Other comprehensive loss before reclassifications	-316	'	'
Reclassifications	-37	'	'
Other Comprehensive Income (Loss)	-353	'	'
Ending balance	-140	'	'
Gain (loss) on sale of business	30	'	'
Defined Benefit Pension [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'
Beginning balance	-40	'	'
Other comprehensive loss before reclassifications	0	'	'
Reclassifications	2	'	'
Other Comprehensive Income (Loss)	2	'	'
Ending balance	-38	'	'
Deferred Loss on Derivatives [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'
Beginning balance	-10	'	'
Other comprehensive loss before reclassifications	0	'	'
Reclassifications	1	'	'
Other Comprehensive Income (Loss)	1	'	'
Ending balance	($9)	'	'

Shareholders_Equity_Narrative_

Shareholders' Equity (Narrative) (Details) (USD $)	0 Months Ended
In Millions, except Share data, unless otherwise specified	Feb. 28, 2012	Mar. 04, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Class of Warrant or Right [Line Items]	'	'	'	'	'	'
Common shares, authorized	'	'	840,000,000	840,000,000	'	'
Common shares, conditionally authorized	'	'	372,000,000	372,000,000	'	'
Outstanding warrants to purchase shares	'	'	'	'	8,600,000	12,900,000
Price per share of warrant execution (in dollars per share)	'	'	'	'	'	15
Proceeds from issuance of warrants	$65	'	'	'	'	'
Shares issued for warrants	494,000	1,700,000	'	'	'	'
Net Share Settlement [Member]	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'
Warrants exercised during the period	'	4,300,000	'	'	'	'
Physical Delivery of Shares [Member]	'	'	'	'	'	'
Class of Warrant or Right [Line Items]	'	'	'	'	'	'
Warrants exercised during the period	4,300,000	'	'	'	'	'

ShareBased_Compensation_Narrat

Share-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of shares available for grant under Incentive Plans	16.7	'	'
Maximum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Maximum term (in years) that awards will be granted	'10 years	'	'
Employee Stock Option [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Intrinsic value of stock options exercised	$12	$4	$10
Employee Stock Option [Member] | Minimum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'1 year	'	'
Employee Stock Option [Member] | Maximum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'4 years	'	'
Restricted Stock and Restricted Stock Units (RSUs) [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Weighted-average grant date fair value	$13.49	$13.30	$22.41
Total fair value of awards vested during the period	61	78	86
Unrecognized compensation expense	67	'	'
Unrecognized compensation expense, recognition period	'2 years	'	'
Restricted Stock and Restricted Stock Units (RSUs) [Member] | Minimum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'2 years	'	'
Restricted Stock and Restricted Stock Units (RSUs) [Member] | Maximum [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'5 years	'	'
Performance units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Award vesting period	'3 years	'	'
Risk-free interest rate	0.40%	'	'
Volatility rate	42.10%	'	'
Dividend yield	0.00%	'	'
Weighted-average grant date fair value	$10.81	$21.32	$29.64
Total fair value of awards vested during the period	8	1	'
Shares issued for share-based compensation awards (in shares)	1.3	'	'
Unrecognized compensation expense	$12	'	'
Unrecognized compensation expense, recognition period	'1 year	'	'

ShareBased_Compensation_Schedu

Share-Based Compensation (Schedule of Share-based Compensation Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'	'
Share-based compensation	$66	$76	$87
Related tax benefit	$11	$27	$30

ShareBased_Compensation_Stock_

Share-Based Compensation (Stock Option Activity) (Details) (Employee Stock Option [Member], USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Employee Stock Option [Member]	'	'
A summary of option activity for the period [Roll Forward]	'	'
Number of options outstanding, beginning of period	10,403,000	'
Number of options, granted	0	'
Number of options, exercised	-2,447,000	'
Number of options, forfeited	0	'
Number of options outstanding, end of period	7,956,000	10,403,000
Share based payment award, options, additional disclosures [Abstract]	'	'
Weighted-average exercise price, outstanding at beginning of period	$9.21	'
Weighted average exercise price, granted	$0	'
Weighted average exercise price, exercised	$8.89	'
Weighted average exercise price, forfeited	$0	'
Weighted average exercise price, outstanding at end of period	$9.31	$9.21
Weighted average remaining contractual term	'2 years 0 months 4 days	'2 years 6 months 14 days
Aggregate intrinsic value, outstanding	$54,775	$31,717

ShareBased_Compensation_Restri

Share-Based Compensation (Restricted Stock Activity) (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013
Restricted share awards [Member]	'
Non-vested equity instruments other than options [Roll Forward]	'
Non-vested, beginning balance	2,402
Granted	2,397
Vested	-1,178
Forfeited	-410
Non-vested, ending balance	3,211
Weighted-average grant date fair value of other-than-options additional disclosures [Rollforward]	'
Non-vested, beginning balance	$18.93
Granted	$14.04
Vested	$21.44
Forfeited	$15.40
Non-vested, ending balance	$14.80
Restricted share units [Member]	'
Non-vested equity instruments other than options [Roll Forward]	'
Non-vested, beginning balance	3,051
Granted	2,305
Vested	-1,870
Forfeited	-349
Non-vested, ending balance	3,137
Weighted-average grant date fair value of other-than-options additional disclosures [Rollforward]	'
Non-vested, beginning balance	$18.63
Granted	$12.93
Vested	$19.20
Forfeited	$17.23
Non-vested, ending balance	$14.26

ShareBased_Compensation_Perfor

Share-Based Compensation (Performance Unit Activity) (Details) (Performance units [Member], USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Performance units [Member]	'	'	'
Non-vested equity instruments other than options [Roll Forward]	'	'	'
Non-vested, beginning balance	1,402	'	'
Granted	1,905	'	'
Vested	-700	'	'
Forfeited	-696	'	'
Non-vested, ending balance	1,911	1,402	'
Weighted-average grant date fair value of other-than-options additional disclosures [Rollforward]	'	'	'
Non-vested, beginning balance	$23.14	'	'
Granted	$10.81	$21.32	$29.64
Vested	$12.04	'	'
Forfeited	$20.03	'	'
Non-vested, ending balance	$16.05	$23.14	'

Retirement_and_Employee_Benefi2

Retirement and Employee Benefit Plans (Assumptions) (Details)	Dec. 31, 2013	Dec. 31, 2012
Minimum [Member] | United States [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Discount rate	1.00%	1.00%
Minimum [Member] | Non-U.S. [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Discount rate	3.50%	1.36%
Rate of compensation increase	3.00%	2.00%
Maximum [Member] | United States [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Discount rate	4.75%	4.00%
Maximum [Member] | Non-U.S. [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Discount rate	7.00%	7.00%
Rate of compensation increase	4.50%	4.10%

Retirement_and_Employee_Benefi3

Retirement and Employee Benefit Plans (Narrative) (Details) (Pension Plan and Other Postretirement Benefit Plan, Defined Benefit [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Contribution expenses related to the defined contribution plans which cover certain employees	$73	$62	$50
Net periodic benefit cost	20	16	14
Projected benefit obligation	297	275	'
Accumulated benefit obligation for defined benefit pension plans	52	55	'
Employer contributions	12	11	'
Amount expected to be contributed to the next fiscal year to the pension and postretirement benefit plans (in hundredths)	12	'	'
Level 2 [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Fair value of plan assets	$151	$130	'

Income_Taxes_Schedule_of_Incom

Income Taxes (Schedule of Income Tax Benefit (Provision)) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Total current provision	($177)	($475)	($421)
Total deferred benefit (provision)	33	13	-121
Income tax benefit (provision)	($144)	($462)	($542)

Income_Taxes_Effective_Income_

Income Taxes (Effective Income Tax Rate) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Statutory income tax rate	7.83%	7.83%	7.83%
Swiss federal income tax rate at 7.83%	$13	$23	($59)
Tax on earnings subject to rates different than the Swiss federal income tax rate	89	-341	-377
Change in valuation allowance	-264	-108	-29
Change in uncertain tax positions	18	-36	-77
Income tax benefit (provision)	($144)	($462)	($542)

Income_Taxes_Deferred_Tax_Asse

Income Taxes (Deferred Tax Assets and Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Deferred tax assets:	'	'
Net operating losses carryforwards	$647	$396
Accrued liabilities and reserves	239	229
Tax credit carryforwards	115	117
Employee benefits	54	61
Inventory	58	61
Other	80	112
Valuation allowance	-571	-317
Total deferred tax assets	622	659
Deferred tax liabilities:	'	'
Property, plant and equipment	-478	-501
Intangible assets	-238	-245
Deferred Income	-6	-27
Other	-20	-32
Total deferred tax liabilities	-742	-805
Net deferred tax assets (liabilities)	($120)	($146)

Income_Taxes_Unrecognized_Tax_

Income Taxes (Unrecognized Tax Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]	'	'	'
Balance at beginning of year	$296	$292	$237
Additions as a result of tax positions taken during a prior period	64	8	7
Reductions as a result of tax positions taken during a prior period	-12	-1	-8
Additions as a result of tax positions taken during the current period	31	29	65
Reductions relating to settlements with taxing authorities	-60	-14	-3
Reductions as a result of a lapse of the applicable statute of limitations	-19	-19	-2
Foreign exchange effects	-11	1	-4
Balance at end of year	$289	$296	$292

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2012

Dec. 31, 2013

country

United States [Member]

Iraq [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Trade Sanctions [Member]

Trade Sanctions [Member]

Research Tax Credit Carryforward [Member]

Foreign Tax Credit Carryforward [Member]

Venezuelan Bolivar [Member]

Venezuelan Bolivar [Member]

Valuation Allowance of Deferred Tax Assets [Member]

Valuation Allowance of Deferred Tax Assets [Member]

Valuation Allowance of Deferred Tax Assets [Member]

Valuation Allowance of Deferred Tax Assets [Member]

Valuation Allowance of Deferred Tax Assets [Member]

Operating Segments [Member]

United States [Member]

United States [Member]

Iraq [Member]

Income Tax Contingency [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss contingency accrual, provision

'

$153,000,000

$100,000,000

$0

'

'

$153,000,000

$153,000,000

$100,000,000

$100,000,000

'

'

'

'

'

'

'

'

'

'

Loss on certain legacy projects

'

299,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Bad debt expense

'

102,000,000

22,000,000

52,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

98,000,000

Currency devaluation expense

'

'

'

'

'

'

'

'

'

'

'

'

100,000,000

100,000,000

'

'

'

'

'

'

Goodwill impairment loss

589,000,000

'

589,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of equity investments

'

'

204,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax expense related to redemption of equity

'

'

'

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation allowance

'

'

'

'

'

134,000,000

'

'

'

'

'

'

'

'

571,000,000

317,000,000

201,000,000

173,000,000

72,000,000

'

Undistributed earnings of foreign subsidiaries

'

1,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating loss carryforwards

'

2,700,000,000

'

'

459,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax credit carryforwards

'

115,000,000

'

'

97,000,000

'

'

'

'

'

25,000,000

72,000,000

'

'

'

'

'

'

'

'

Income tax interest and penalties expense

'

21,000,000

21,000,000

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accrued interest and penalties excluded from reconciliation of uncertain tax positions

'

121,000,000

142,000,000

121,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of countries operated in (over 100 countries)

'

100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated reduction in the balance of uncertain tax positions, upper bound

'

$36,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Disputes_Litigation_and_Contin1

Disputes, Litigation and Contingencies (Details) (USD $)

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

2 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jun. 30, 2012

Dec. 31, 2012

Jun. 30, 2013

Dec. 31, 2013

Sep. 30, 2013

Feb. 25, 2014

Jan. 31, 2014

Feb. 25, 2014

Dec. 31, 2013

Jan. 29, 2014

Trade Sanctions [Member]

Trade Sanctions [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

SIX Swiss Exchange Sanction Commission [Member]

U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]

U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]

U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]

U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]

Dobina v. Weatherford International Ltd., et al. [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Material Weakness in Internal Controls [Member]

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments for legal settlements

'

'

'

'

'

'

'

'

$187,000,000

$66,000,000

$253,000,000

'

$53,000,000

Period of time expected to be monitored for assessing company's compliance upon settlement

'

'

'

'

'

'

'

'

'

'

'

'18 months

'

Loss contingency accrual, provision

153,000,000

100,000,000

0

100,000,000

100,000,000

153,000,000

153,000,000

'

'

'

'

'

'

Litigation settlement, amount

'

'

'

'

'

'

'

$270,000

'

'

'

'

'

Commitments_Details

Commitments (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]	'	'	'
2014	$277	'	'
2015	239	'	'
2016	185	'	'
2017	137	'	'
2018	109	'	'
Thereafter	270	'	'
Total	1,217	'	'
Total rent expense incurred under operating leases	$581	$458	$328

Segment_Information_Details

Segment Information (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

$3,738

$3,820

$3,868

$3,837

$4,058

$3,819

$3,747

$3,591

$15,263

$15,215

$12,988

Income from Operations

'

'

'

'

'

'

'

'

523

[1]

298

[2]

1,307

Depreciation and Amortization

'

'

'

'

'

'

'

'

1,402

1,282

1,136

Capital Expenditures

'

'

'

'

'

'

'

'

1,575

2,177

1,524

Total Assets

21,977

'

'

'

22,795

'

'

'

21,977

22,795

21,051

Operating Segments [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

'

'

'

'

'

'

'

'

15,263

15,215

12,988

Income from Operations

'

'

'

'

'

'

'

'

1,318

[1]

1,822

[2]

1,825

Depreciation and Amortization

'

'

'

'

'

'

'

'

1,382

1,257

1,116

Capital Expenditures

'

'

'

'

'

'

'

'

1,512

2,126

1,475

Total Assets

21,641

'

'

'

22,097

'

'

'

21,641

22,097

20,416

Operating Segments [Member] | North America [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

'

'

'

'

'

'

'

'

6,390

6,824

6,023

Income from Operations

'

'

'

'

'

'

'

'

820

[1]

1,078

[2]

1,259

Depreciation and Amortization

'

'

'

'

'

'

'

'

424

412

357

Capital Expenditures

'

'

'

'

'

'

'

'

434

744

416

Total Assets

7,720

'

'

'

8,223

'

'

'

7,720

8,223

7,672

Operating Segments [Member] | Middle East/North Africa/Asia [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

'

'

'

'

'

'

'

'

3,344

2,795

2,441

[3]

Income from Operations

'

'

'

'

'

'

'

'

-96

[1]

34

[2]

25

[3]

Depreciation and Amortization

'

'

'

'

'

'

'

'

396

352

328

[3]

Capital Expenditures

'

'

'

'

'

'

'

'

526

657

504

[3]

Total Assets

5,328

'

'

'

5,108

'

'

'

5,328

5,108

5,264

[3]

Operating Segments [Member] | Europe/Sub-Sahara Africa/Russia [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

'

'

'

'

'

'

'

'

2,693

2,519

2,298

Income from Operations

'

'

'

'

'

'

'

'

288

[1]

315

[2]

287

Depreciation and Amortization

'

'

'

'

'

'

'

'

286

255

233

Capital Expenditures

'

'

'

'

'

'

'

'

305

341

226

Total Assets

4,346

'

'

'

4,418

'

'

'

4,346

4,418

3,963

Operating Segments [Member] | Latin America [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net Operating Revenues

'

'

'

'

'

'

'

'

2,836

3,077

2,226

Income from Operations

'

'

'

'

'

'

'

'

306

[1],[4]

395

[2]

254

Depreciation and Amortization

'

'

'

'

'

'

'

'

276

238

198

Capital Expenditures

'

'

'

'

'

'

'

'

247

384

329

Total Assets

4,247

'

'

'

4,348

'

'

'

4,247

4,348

3,517

Corporate and Research and Development [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Income from Operations

'

'

'

'

'

'

'

'

-466

[1]

-453

[2]

-422

Depreciation and Amortization

'

'

'

'

'

'

'

'

20

25

20

Capital Expenditures

'

'

'

'

'

'

'

'

63

51

49

Total Assets

336

'

'

'

698

'

'

'

336

698

635

Goodwill and Equity Investment Impairment [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Income from Operations

'

'

'

'

'

'

'

'

'

-793

[2]

'

U.S. Government Investigation Loss [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Income from Operations

'

'

'

'

'

'

'

'

-153

-100

[2]

'

Other Items [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Income from Operations

'

'

'

'

'

'

'

'

($176)

[1],[5]

($178)

[2],[6]

($96)

[3],[7]

[1]

For the year ended December 31, 2013, we recognized a charge for bad debt expense of $98 million attributable to our reporting segments as follows: $59 million in Latin America, $27 million in MENA/Asia Pacific, $10 million for Europe/SSA/Russia, and $2 million in North America. See footnote (b) below for additional details for the bad debt expense charge in Latin America of $59 million. During 2013, we recognized a charge for excess and obsolete inventory of $62 million attributable to each reporting segment as follows: $35 million in North America, $7 million in MENA/Asia Pacific, $13 million in Europe/SSA/Russia and $7 million in Latin America.

[2]

Other Items for 2012 include income tax restatement and material weakness remediation expenses of $103 million, $13 million of costs incurred in connection with U.S. government investigations, $11 million of non-recurring fees and expenses associated with our 2012 debt consent solicitation and severance, exit and other charges of $79 million, offset by a $28 million gain related to the sale of our subsea controls business.

[3]

In early 2011, our operations in Libya were disrupted by civil unrest. Due to the hostilities, we were unable to physically verify the existence or condition of the majority of our assets in country for most of 2011 and the information available to us about these assets evolved during the year. Additionally, due to international sanctions against all entities affiliated with the Libyan government, we were unable to pursue collections of accounts receivable from a significant portion of our Libyan customers. In the fourth quarter, hostilities subsided and limited company personnel were able to re-enter the country. Additionally, we were able to engage in discussions with our customers. Following an examination of our Libyan assets and evaluation of our accounts receivable from Libyan customers, we recognized an expense of $59 million primarily to establish a reserve for receivables, machinery and equipment and inventory in Libya.

[4]

On December 17, 2013, we accepted bonds with a face value of $127 million from PDVSA in full settlement of $127 million in trade receivables. Upon receipt, we immediately sold these bonds in a series of transactions recognizing a loss of $58 million.

[5]

Other items for 2013 include $67 million of professional fees and expenses for U.S. government investigations and the remediation of our material weakness related to income taxes, $94 million of severance and $15 million of other items, which include gains totaling $24 million primarily related to the sale of our 38.5% equity interest in Borets as well as our industrial screen business.

[6]

During 2012, we recognized a charge for excess and obsolete inventory of $53 million attributable to each reporting segment as follows: $21 million in North America, $16 million in MENA/Asia Pacific, $11 million in Europe/SSA/Russia and $5 million in Latin America. We also recognized a charge of $30 million to adjust the carrying value of our guar inventory, a component of certain drilling fluids, to the lower of cost or market, all of which was attributable to the North America reporting segment.

[7]

Other Items for 2011 includes income tax restatement and material weakness remediation expenses of $22 million, $10 million of costs incurred in connection with U.S. government investigations related to Foreign Corrupt Practices Act and United Nations oil-for-food program governing sales of goods into Iraq matters, $9 million associated with the termination of a corporate consulting contract, and severance, exit and other charges of $55 million.

Segment_Information_Narrative_

Segment Information (Narrative) (Details) (USD $)

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Oct. 07, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

North America [Member]

North America [Member]

Middle East/North Africa/Asia [Member]

Middle East/North Africa/Asia [Member]

Europe/Sub-Sahara Africa/Russia [Member]

Europe/Sub-Sahara Africa/Russia [Member]

Latin America [Member]

Latin America [Member]

Borets [Member]

Excessive Quantities and Obsolescence [Member]

Excessive Quantities and Obsolescence [Member]

Excessive Quantities and Obsolescence [Member]

Customer Concentration Risk [Member]

Employee Severance [Member]

Guar Inventory [Member]

Guar Inventory [Member]

U.S. Government Investigations [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Libya [Member]

Operating Segments [Member]

Petroleos de Venezuela, S.A. [Member]

Lower of Cost or Market [Member]

Lower of Cost or Market [Member]

Accounts Receivable [Member]

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Bad debt expense

$102

$22

$52

$2

'

$27

'

$10

'

$59

'

'

'

'

'

'

'

'

'

'

'

'

$98

Increase (decrease) in accounts receivable

12

705

623

'

'

'

'

'

'

'

'

'

'

'

'

-127

'

'

'

'

'

'

'

Bond face amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

127

'

'

'

'

'

'

'

Gain (loss) on sale of bonds

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-58

'

'

'

'

'

'

'

Professional fees and expenses for investigations and remediation of material weakness

67

103

22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Severance, exit and other charges

15

79

55

'

'

'

'

'

'

'

'

'

'

'

'

'

94

'

'

'

'

'

'

Gain (loss) on sale of business

24

28

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity method investment, ownership percentage

'

'

'

'

'

'

'

'

'

'

'

38.50%

'

'

'

'

'

'

'

'

'

'

'

Investigation costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13

10

'

'

Consent solicitation fees

'

11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Inventory write-down

'

53

'

35

21

7

16

13

11

7

5

'

64

62

53

'

'

30

30

'

'

'

'

Asset impairment charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

59

'

Contract termination fee

'

'

$9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Segment_Information_Products_a

Segment Information (Products and Services) (Details) (Product Concentration Risk [Member], Sales Revenue, Net [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue from External Customer [Line Items]	'	'	'
Consolidated revenues by product line	100.00%	100.00%	100.00%
Formation Evaluation and Well Construction [Member]	'	'	'
Revenue from External Customer [Line Items]	'	'	'
Consolidated revenues by product line	61.00%	56.00%	57.00%
Completion and Production [Member]	'	'	'
Revenue from External Customer [Line Items]	'	'	'
Consolidated revenues by product line	39.00%	44.00%	43.00%

Segment_Information_Geographic

Segment Information (Geographic Areas) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Deferred tax assets for long-lived assets	$33	'	'	'	$59	'	'	'	$33	$59	$145
Revenues	3,738	3,820	3,868	3,837	4,058	3,819	3,747	3,591	15,263	15,215	12,988
Long-lived Assets	8,835	'	'	'	9,071	'	'	'	8,835	9,071	8,051
United States [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	5,146	5,465	4,714
Long-lived Assets	2,272	'	'	'	2,524	'	'	'	2,272	2,524	2,353
Canada [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	1,243	1,359	1,309
Long-lived Assets	438	'	'	'	471	'	'	'	438	471	435
Mexico [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	959	1,274	789
Long-lived Assets	226	'	'	'	231	'	'	'	226	231	222
Other Countries [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	7,915	7,117	6,176
Long-lived Assets	$5,899	'	'	'	$5,845	'	'	'	$5,899	$5,845	$5,041

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent Event [Member], USD $)	1 Months Ended		2 Months Ended	0 Months Ended
In Millions, unless otherwise specified	Feb. 25, 2014	Jan. 31, 2014	Feb. 25, 2014	Jan. 29, 2014
	Oil-for-Food Program and Foreign Corrupt Practices Act [Member]	Oil-for-Food Program and Foreign Corrupt Practices Act [Member]	Oil-for-Food Program and Foreign Corrupt Practices Act [Member]	Material Weakness in Internal Controls [Member]
	U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]	U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]	U.S. District Court for the Southern District of Texas v. Weatherford International Ltd. [Member]	Dobina v. Weatherford International Ltd., et al. [Member]
Subsequent Event [Line Items]	'	'	'	'
Payments for legal settlements	$187	$66	$253	$53

Consolidating_Financial_Statem2

Consolidating Financial Statements (Narrative) (Details)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

2-May-13

Senior Notes, 6.35% due 2017 [Member]

Senior Notes, 6.35% due 2017 [Member]

Senior Notes, 6.35% due 2017 [Member]

Senior Notes, 6.35% due 2017 [Member]

Senior Notes, 6.80% due 2037 [Member]

Senior Notes, 6.80% due 2037 [Member]

Senior Notes, 6.80% due 2037 [Member]

Senior Notes, 6.80% due 2037 [Member]

Senior Notes, 5.95 Percent due 2012 [Member]

Senior Notes, 5.95% due 2042 [Member]

Senior Notes, 5.95% due 2042 [Member]

Senior Notes, 5.95% due 2042 [Member]

Senior Notes, 5.95% due 2042 [Member]

Senior Notes, 5.95% due 2042 [Member]

Senior Notes, 9.625% due 2019 [Member]

Senior Notes, 9.625% due 2019 [Member]

Senior Notes, 9.625% due 2019 [Member]

Senior Notes, 9.625% due 2019 [Member]

Senior Notes, 5.50% due 2016 [Member]

Senior Notes, 5.50% due 2016 [Member]

Senior Notes, 5.50% due 2016 [Member]

Senior Notes, 5.50% due 2016 [Member]

Senior Notes, 6.50% due 2036 [Member]

Senior Notes, 6.50% due 2036 [Member]

Senior Notes, 6.50% due 2036 [Member]

Senior Notes, 6.50% due 2036 [Member]

Senior Notes, 6.00% due 2018 [Member]

Senior Notes, 6.00% due 2018 [Member]

Senior Notes, 6.00% due 2018 [Member]

Senior Notes, 6.00% due 2018 [Member]

Senior Notes, 7.00% due 2038 [Member]

Senior Notes, 7.00% due 2038 [Member]

Senior Notes, 7.00% due 2038 [Member]

Senior Notes, 7.00% due 2038 [Member]

Senior Notes, 9.875% due 2039 [Member]

Senior Notes, 9.875% due 2039 [Member]

Senior Notes, 9.875% due 2039 [Member]

Senior Notes, 9.875% due 2039 [Member]

Senior Notes, 5.125% due 2020 [Member]

Senior Notes, 5.125% due 2020 [Member]

Senior Notes, 5.125% due 2020 [Member]

Senior Notes, 5.125% due 2020 [Member]

Senior Notes, 6.75% due 2040 [Member]

Senior Notes, 6.75% due 2040 [Member]

Senior Notes, 6.75% due 2040 [Member]

Senior Notes, 6.75% due 2040 [Member]

Senior Notes, 4.50% due 2022 [Member]

Senior Notes, 4.50% due 2022 [Member]

Senior Notes, 4.50% due 2022 [Member]

Senior Notes, 4.50% due 2022 [Member]

Senior Notes, 4.95% due 2013 [Member]

Senior Notes, 4.95% due 2013 [Member]

Senior Notes, 4.95% due 2013 [Member]

Senior Notes, 5.15% due 2013 [Member]

Senior Notes, 5.15% due 2013 [Member]

Senior Notes, 5.15% due 2013 [Member]

364-day term loan facility [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Weatherford Delaware [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Bermuda [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Weatherford Delaware [Member]

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stated interest rate on debt

6.35%

6.35%

6.35%

6.35%

6.80%

6.80%

6.80%

6.80%

5.95%

5.95%

5.95%

5.95%

5.95%

5.95%

9.63%

9.63%

9.63%

9.63%

5.50%

5.50%

5.50%

5.50%

6.50%

6.50%

6.50%

6.50%

6.00%

6.00%

6.00%

6.00%

7.00%

7.00%

7.00%

7.00%

9.88%

9.88%

9.88%

9.88%

5.13%

5.13%

5.13%

5.13%

6.75%

6.75%

6.75%

6.75%

4.50%

4.50%

4.50%

4.50%

4.95%

4.95%

4.95%

5.15%

5.15%

5.15%

'

Debt instrument, term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'364 days

Consolidating_Financial_Statem3

Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
Current Assets	'	'	'	'
Cash and Cash Equivalents	$435	$300	$371	$416
Other Current Assets	8,339	8,729	'	'
Total Current Assets	8,774	9,029	'	'
Other Assets	13,203	13,766	'	'
Total Assets	21,977	22,795	21,051	'
Current Liabilities	'	'	'	'
Short-term Borrowings and Current Portion of Long-Term Debt	1,666	1,585	'	'
Accounts Payable and Other Current Liabilities	4,033	4,125	'	'
Total Current Liabilities	5,699	5,710	'	'
Long-term Debt	7,061	7,049	'	'
Other Long-term Liabilities	1,014	1,218	'	'
Total Liabilities	13,774	13,977	'	'
Weatherford Shareholders’ Equity	8,162	8,786	'	'
Noncontrolling Interests	41	32	'	'
Total Liabilities and Shareholders’ Equity	21,977	22,795	'	'
Eliminations [Member]	'	'	'	'
Current Assets	'	'	'	'
Other Current Assets	-408	-219	'	'
Total Current Assets	-408	-219	'	'
Equity Investments in Affiliates	-34,936	-40,107	'	'
Equity Held in Parent	-37	-182	'	'
Intercompany Receivables, Net	-7,304	-1,872	'	'
Total Assets	-42,685	-42,380	'	'
Current Liabilities	'	'	'	'
Accounts Payable and Other Current Liabilities	-408	-218	'	'
Total Current Liabilities	-408	-218	'	'
Intercompany Payables, Net	-7,304	-1,872	'	'
Total Liabilities	-7,712	-2,090	'	'
Weatherford Shareholders’ Equity	-34,973	-40,290	'	'
Total Liabilities and Shareholders’ Equity	-42,685	-42,380	'	'
Weatherford Switzerland [Member]	'	'	'	'
Current Assets	'	'	'	'
Other Current Assets	57	5	'	'
Total Current Assets	57	5	'	'
Equity Investments in Affiliates	8,663	9,184	'	'
Other Assets	7	17	'	'
Total Assets	8,727	9,206	'	'
Current Liabilities	'	'	'	'
Accounts Payable and Other Current Liabilities	312	8	'	'
Total Current Liabilities	312	8	'	'
Intercompany Payables, Net	243	400	'	'
Other Long-term Liabilities	10	12	'	'
Total Liabilities	565	420	'	'
Weatherford Shareholders’ Equity	8,162	8,786	'	'
Total Liabilities and Shareholders’ Equity	8,727	9,206	'	'
Weatherford Bermuda [Member]	'	'	'	'
Current Assets	'	'	'	'
Cash and Cash Equivalents	'	'	0	114
Other Current Assets	5	5	'	'
Total Current Assets	5	5	'	'
Equity Investments in Affiliates	11,742	14,790	'	'
Intercompany Receivables, Net	0	1,872	'	'
Other Assets	41	45	'	'
Total Assets	11,788	16,712	'	'
Current Liabilities	'	'	'	'
Short-term Borrowings and Current Portion of Long-Term Debt	1,445	1,439	'	'
Accounts Payable and Other Current Liabilities	129	246	'	'
Total Current Liabilities	1,574	1,685	'	'
Long-term Debt	5,891	5,895	'	'
Intercompany Payables, Net	6,755	'	'	'
Other Long-term Liabilities	97	76	'	'
Total Liabilities	14,317	7,656	'	'
Weatherford Shareholders’ Equity	-2,529	9,056	'	'
Total Liabilities and Shareholders’ Equity	11,788	16,712	'	'
Weatherford Delaware [Member]	'	'	'	'
Current Assets	'	'	'	'
Cash and Cash Equivalents	'	'	0	12
Other Current Assets	415	256	'	'
Total Current Assets	415	256	'	'
Equity Investments in Affiliates	8,065	7,675	'	'
Equity Held in Parent	10	10	'	'
Intercompany Receivables, Net	'	0	'	'
Other Assets	17	14	'	'
Total Assets	8,507	7,955	'	'
Current Liabilities	'	'	'	'
Short-term Borrowings and Current Portion of Long-Term Debt	23	26	'	'
Total Current Liabilities	23	26	'	'
Long-term Debt	986	1,019	'	'
Intercompany Payables, Net	306	477	'	'
Other Long-term Liabilities	2	3	'	'
Total Liabilities	1,317	1,525	'	'
Weatherford Shareholders’ Equity	7,190	6,430	'	'
Total Liabilities and Shareholders’ Equity	8,507	7,955	'	'
Other Subsidiaries [Member]	'	'	'	'
Current Assets	'	'	'	'
Cash and Cash Equivalents	435	300	371	290
Other Current Assets	8,270	8,682	'	'
Total Current Assets	8,705	8,982	'	'
Equity Investments in Affiliates	6,466	8,458	'	'
Equity Held in Parent	27	172	'	'
Intercompany Receivables, Net	7,304	'	'	'
Other Assets	13,138	13,690	'	'
Total Assets	35,640	31,302	'	'
Current Liabilities	'	'	'	'
Short-term Borrowings and Current Portion of Long-Term Debt	198	120	'	'
Accounts Payable and Other Current Liabilities	4,000	4,089	'	'
Total Current Liabilities	4,198	4,209	'	'
Long-term Debt	184	135	'	'
Intercompany Payables, Net	0	995	'	'
Other Long-term Liabilities	905	1,127	'	'
Total Liabilities	5,287	6,466	'	'
Weatherford Shareholders’ Equity	30,312	24,804	'	'
Noncontrolling Interests	41	32	'	'
Total Liabilities and Shareholders’ Equity	$35,640	$31,302	'	'

Consolidating_Financial_Statem4

Consolidating Financial Statements (Condensed Consolidating Statement of Operations) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Condensed Income Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues

$3,738

$3,820

$3,868

$3,837

$4,058

$3,819

$3,747

$3,591

$15,263

$15,215

$12,988

Costs and Expenses

'

'

'

'

'

'

'

'

-14,740

-14,917

-11,681

Operating Income (Loss)

'

'

'

'

'

'

'

'

523

[1]

298

[2]

1,307

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Net

'

'

'

'

'

'

'

'

-516

-486

-453

Other, Net

'

'

'

'

'

'

'

'

-177

-100

-107

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

-170

-288

747

(Provision) Benefit for Income Taxes

'

'

'

'

'

'

'

'

-144

-462

-542

Net Income (Loss)

'

'

'

'

'

'

'

'

-314

-750

205

Net Income Attributable to Noncontrolling Interests

'

'

'

'

'

'

'

'

-31

-28

-16

Net Income (Loss) Attributable to Weatherford

-271

22

-118

22

-122

70

-849

123

-345

-778

189

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-695

-695

67

Weatherford Switzerland [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Income Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Costs and Expenses

'

'

'

'

'

'

'

'

-50

-59

-48

Operating Income (Loss)

'

'

'

'

'

'

'

'

-50

-59

-48

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Net

'

'

'

'

'

'

'

'

'

'

0

Intercompany Charges, Net

'

'

'

'

'

'

'

'

-53

-28

-61

Equity in Subsidiary Income (Loss)

'

'

'

'

'

'

'

'

-242

-689

299

Other, Net

'

'

'

'

'

'

'

'

0

-2

'

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

-345

-778

190

(Provision) Benefit for Income Taxes

'

'

'

'

'

'

'

'

'

0

-1

Net Income (Loss)

'

'

'

'

'

'

'

'

-345

-778

189

Net Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-345

-778

189

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-695

-695

67

Weatherford Bermuda [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Income Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Costs and Expenses

'

'

'

'

'

'

'

'

-139

-114

-3

Operating Income (Loss)

'

'

'

'

'

'

'

'

-139

-114

-3

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Net

'

'

'

'

'

'

'

'

-430

-401

-353

Intercompany Charges, Net

'

'

'

'

'

'

'

'

49

53

16

Equity in Subsidiary Income (Loss)

'

'

'

'

'

'

'

'

30

-701

281

Other, Net

'

'

'

'

'

'

'

'

-31

-34

-33

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

-521

-1,197

-92

Net Income (Loss)

'

'

'

'

'

'

'

'

-521

-1,197

-92

Net Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-521

-1,197

-92

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-788

-1,197

-92

Weatherford Delaware [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Income Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Costs and Expenses

'

'

'

'

'

'

'

'

-3

-5

-3

Operating Income (Loss)

'

'

'

'

'

'

'

'

-3

-5

-3

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Net

'

'

'

'

'

'

'

'

-61

-69

-90

Intercompany Charges, Net

'

'

'

'

'

'

'

'

-337

-233

-177

Equity in Subsidiary Income (Loss)

'

'

'

'

'

'

'

'

461

-94

802

Other, Net

'

'

'

'

'

'

'

'

-2

0

-1

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

58

-401

531

(Provision) Benefit for Income Taxes

'

'

'

'

'

'

'

'

145

107

65

Net Income (Loss)

'

'

'

'

'

'

'

'

203

-294

596

Net Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

203

-294

596

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

39

-294

596

Other Subsidiaries [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Income Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

15,263

15,215

12,988

Costs and Expenses

'

'

'

'

'

'

'

'

-14,548

-14,739

-11,627

Operating Income (Loss)

'

'

'

'

'

'

'

'

715

476

1,361

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Net

'

'

'

'

'

'

'

'

-25

-16

-10

Intercompany Charges, Net

'

'

'

'

'

'

'

'

341

208

222

Other, Net

'

'

'

'

'

'

'

'

-144

-64

-73

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

887

604

1,500

(Provision) Benefit for Income Taxes

'

'

'

'

'

'

'

'

-289

-569

-606

Net Income (Loss)

'

'

'

'

'

'

'

'

598

35

894

Net Income Attributable to Noncontrolling Interests

'

'

'

'

'

'

'

'

-31

-28

-16

Net Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

567

7

878

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

214

90

756

Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

Other Income (Expense):

'

'

'

'

'

'

'

'

'

'

'

Equity in Subsidiary Income (Loss)

'

'

'

'

'

'

'

'

-249

1,484

-1,382

Income (Loss) Before Income Taxes

'

'

'

'

'

'

'

'

-249

1,484

-1,382

Net Income (Loss)

'

'

'

'

'

'

'

'

-249

1,484

-1,382

Net Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

-249

1,484

-1,382

Comprehensive Income (Loss) Attributable to Weatherford

'

'

'

'

'

'

'

'

$535

$1,401

($1,260)

[1]

For the year ended December 31, 2013, we recognized a charge for bad debt expense of $98 million attributable to our reporting segments as follows: $59 million in Latin America, $27 million in MENA/Asia Pacific, $10 million for Europe/SSA/Russia, and $2 million in North America. See footnote (b) below for additional details for the bad debt expense charge in Latin America of $59 million. During 2013, we recognized a charge for excess and obsolete inventory of $62 million attributable to each reporting segment as follows: $35 million in North America, $7 million in MENA/Asia Pacific, $13 million in Europe/SSA/Russia and $7 million in Latin America.

[2]

Other Items for 2012 include income tax restatement and material weakness remediation expenses of $103 million, $13 million of costs incurred in connection with U.S. government investigations, $11 million of non-recurring fees and expenses associated with our 2012 debt consent solicitation and severance, exit and other charges of $79 million, offset by a $28 million gain related to the sale of our subsea controls business.

Consolidating_Financial_Statem5

Consolidating Financial Statements (Condensed Consolidating Statement of Cash Flows) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	($314)	($750)	$205
Cash Flows from Operating Activities:	'	'	'
Deferred Income Tax Provision (Benefit)	-33	-13	121
Other Adjustments	1,576	1,984	526
Net Cash Provided (Used) by Operating Activities	1,229	1,221	852
Cash Flows from Investing Activities:	'	'	'
Acquisitions of Businesses, Net of Cash Acquired	-1,575	-2,177	-1,524
Capital Expenditures for Property, Plant and Equipment	-8	-165	-144
Acquisition of Intellectual Property	-9	-17	-8
Purchase of Equity Investment in Unconsolidated Affiliates	0	-8	-14
Proceeds from Sale of Assets and Businesses, Net	488	61	31
Other Investing Activities	0	0	-15
Net Cash Provided (Used) by Investing Activities	-1,104	-2,306	-1,674
Cash Flows From Financing Activities:	'	'	'
Borrowings (Repayments) of Short-term Debt, Net	612	-13	992
Borrowings (Repayments) Long-term Debt, Net	-600	1,003	-194
Other, Net	-6	22	-21
Net Cash Provided (Used) by Financing Activities	6	1,012	777
Effect of Exchange Rate Changes on Cash and Cash Equivalents	4	2	0
Net Increase in Cash and Cash Equivalents	135	-71	-45
Cash and Cash Equivalents at Beginning of Year	300	371	416
Cash and Cash Equivalents at End of Year	435	300	371
Eliminations [Member]	'	'	'
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	-249	1,484	-1,382
Cash Flows from Operating Activities:	'	'	'
Equity in (Earnings) Loss of Affiliates	249	-1,484	1,382
Cash Flows from Investing Activities:	'	'	'
Capital Contribution to Subsidiary	1,181	115	25
Net Cash Provided (Used) by Investing Activities	1,181	115	25
Cash Flows From Financing Activities:	'	'	'
Proceeds from Capital Contributions	-1,181	-115	-25
Net Cash Provided (Used) by Financing Activities	-1,181	-115	-25
Weatherford Switzerland [Member]	'	'	'
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	-345	-778	189
Cash Flows from Operating Activities:	'	'	'
Charges from Parent or Subsidiary	53	28	61
Equity in (Earnings) Loss of Affiliates	242	689	-299
Other Adjustments	-48	50	3
Net Cash Provided (Used) by Operating Activities	-98	-11	-46
Cash Flows from Investing Activities:	'	'	'
Capital Expenditures for Property, Plant and Equipment	'	-30	-4
Capital Contribution to Subsidiary	0	-30	-4
Net Cash Provided (Used) by Investing Activities	0	-60	-8
Cash Flows From Financing Activities:	'	'	'
Borrowings (Repayments) Between Subsidiaries, Net	100	71	54
Other, Net	-2	'	'
Net Cash Provided (Used) by Financing Activities	98	71	54
Weatherford Bermuda [Member]	'	'	'
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	-521	-1,197	-92
Cash Flows from Operating Activities:	'	'	'
Charges from Parent or Subsidiary	-49	-53	-16
Equity in (Earnings) Loss of Affiliates	-30	701	-281
Other Adjustments	748	35	-73
Net Cash Provided (Used) by Operating Activities	148	-514	-462
Cash Flows from Investing Activities:	'	'	'
Capital Contribution to Subsidiary	-1,181	-85	-25
Other Investing Activities	'	'	0
Net Cash Provided (Used) by Investing Activities	-1,181	-85	-25
Cash Flows From Financing Activities:	'	'	'
Borrowings (Repayments) of Short-term Debt, Net	550	-108	996
Borrowings (Repayments) Long-term Debt, Net	-544	1,295	0
Borrowings (Repayments) Between Subsidiaries, Net	1,027	-588	-623
Net Cash Provided (Used) by Financing Activities	1,033	599	373
Net Increase in Cash and Cash Equivalents	'	'	-114
Cash and Cash Equivalents at Beginning of Year	'	0	114
Cash and Cash Equivalents at End of Year	'	'	0
Weatherford Delaware [Member]	'	'	'
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	203	-294	596
Cash Flows from Operating Activities:	'	'	'
Charges from Parent or Subsidiary	337	233	177
Equity in (Earnings) Loss of Affiliates	-461	94	-802
Deferred Income Tax Provision (Benefit)	28	10	-65
Other Adjustments	470	472	-31
Net Cash Provided (Used) by Operating Activities	577	515	-125
Cash Flows from Investing Activities:	'	'	'
Capital Contribution to Subsidiary	0	-118	4
Net Cash Provided (Used) by Investing Activities	0	-118	4
Cash Flows From Financing Activities:	'	'	'
Borrowings (Repayments) of Short-term Debt, Net	-4	'	'
Borrowings (Repayments) Long-term Debt, Net	-30	-296	-18
Borrowings (Repayments) Between Subsidiaries, Net	-565	-101	127
Other, Net	22	'	'
Net Cash Provided (Used) by Financing Activities	-577	-397	109
Net Increase in Cash and Cash Equivalents	'	'	-12
Cash and Cash Equivalents at Beginning of Year	'	0	12
Cash and Cash Equivalents at End of Year	'	'	0
Other Subsidiaries [Member]	'	'	'
Condensed Cash Flow Statements, Captions [Line Items]	'	'	'
Net Income (Loss)	598	35	894
Cash Flows from Operating Activities:	'	'	'
Charges from Parent or Subsidiary	-341	-208	-222
Deferred Income Tax Provision (Benefit)	-61	-23	186
Other Adjustments	406	1,427	627
Net Cash Provided (Used) by Operating Activities	602	1,231	1,485
Cash Flows from Investing Activities:	'	'	'
Acquisitions of Businesses, Net of Cash Acquired	-1,575	-2,177	-1,524
Capital Expenditures for Property, Plant and Equipment	-8	-135	-140
Acquisition of Intellectual Property	-9	-17	-8
Purchase of Equity Investment in Unconsolidated Affiliates	0	-8	-14
Proceeds from Sale of Assets and Businesses, Net	488	61	31
Capital Contribution to Subsidiary	0	118	'
Other Investing Activities	'	'	-15
Net Cash Provided (Used) by Investing Activities	-1,104	-2,158	-1,670
Cash Flows From Financing Activities:	'	'	'
Borrowings (Repayments) of Short-term Debt, Net	66	95	-4
Borrowings (Repayments) Long-term Debt, Net	-26	4	-176
Borrowings (Repayments) Between Subsidiaries, Net	-562	618	442
Proceeds from Capital Contributions	1,181	115	25
Other, Net	-26	22	-21
Net Cash Provided (Used) by Financing Activities	633	854	266
Effect of Exchange Rate Changes on Cash and Cash Equivalents	4	2	0
Net Increase in Cash and Cash Equivalents	135	-71	81
Cash and Cash Equivalents at Beginning of Year	300	371	290
Cash and Cash Equivalents at End of Year	$435	$300	$371

Quarterly_Financial_Data_Unaud2

Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended												12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Selected Quarterly Financial Information [Abstract]	'		'		'		'		'	'	'	'	'		'	'
Revenues	$3,738		$3,820		$3,868		$3,837		$4,058	$3,819	$3,747	$3,591	$15,263		$15,215	$12,988
Gross profit	604		784		742		831		841	852	776	891	2,961		3,360	'
Net Income (Loss) Attributable to Weatherford	($271)		$22		($118)		$22		($122)	$70	($849)	$123	($345)		($778)	$189
Basic Earnings (Loss) Per Share (in dollars per share)	($0.35)	[1]	$0.03	[1]	($0.15)	[1]	$0.03	[1]	($0.16)	$0.09	($1.11)	$0.16	($0.45)	[1]	($1.02)	$0.25
Diluted Earnings (Loss) Per Share (in dollars per share)	($0.35)	[1]	$0.03	[1]	($0.15)	[1]	$0.03	[1]	($0.16)	$0.09	($1.11)	$0.16	($0.45)	[1]	($1.02)	$0.25
[1]	Per share amounts may not sum across due to rounding.

Quarterly_Financial_Data_Unaud3

Quarterly Financial Data (Unaudited) (Narrative) (Details)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2013

Dec. 31, 2013

Feb. 13, 2013

Feb. 12, 2013

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

USD ($)

USD ($)

USD ($)

USD ($)

Venezuelan Bolivar [Member]

Venezuelan Bolivar [Member]

Venezuelan Bolivar [Member]

Venezuelan Bolivar [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Oil-for-Food Program and Foreign Corrupt Practices Act [Member]

Iraq [Member]

Iraq [Member]

Iraq [Member]

Iraq [Member]

Petroleos de Venezuela, S.A. [Member]

Subsea Controls Business [Member]

USD ($)

USD ($)

VEB

VEB

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Customer Concentration Risk [Member]

USD ($)

Accounts Receivable [Member]

USD ($)

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Currency devaluation, exchange rate (in dollars per VEB)

'

'

'

'

'

'

6.3

4.3

'

'

'

'

'

'

'

'

Currency devaluation expense

'

'

'

'

$100

$100

'

'

'

'

'

'

'

'

'

'

Loss contingency accrual, provision

'

153

100

0

'

'

'

'

153

153

'

'

'

'

'

'

Gain (loss) on sale of bonds

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-58

'

Increase (decrease) in accounts receivable

'

12

705

623

'

'

'

'

'

'

'

'

'

'

-127

'

Loss on contracts

'

'

'

'

'

'

'

'

'

'

148

85

232

100

'

'

Estimated loss on long term construction contract

'

'

'

'

'

'

'

'

'

'

307

'

307

'

'

'

Contracts receivable, claims and uncertain amounts

'

'

'

'

'

'

'

'

'

'

36

'

36

68

'

'

Impairment loss

589

'

589

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of equity investments

204

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (loss) on sale of business

'

$24

$28

$0

'

'

'

'

'

'

'

'

'

'

'

$28

Quarterly_Financial_Data_Unaud4

Quarterly Financial Data (Unaudited) (Change in Accounting Estimates) (Details) (USD $)	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2012
		Excessive Quantities and Obsolescence [Member]	Excessive Quantities and Obsolescence [Member]	Excessive Quantities and Obsolescence [Member]	Guar Inventory [Member]	Guar Inventory [Member]	Mexico [Member]	Mexico [Member]
					Lower of Cost or Market [Member]	Lower of Cost or Market [Member]		Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]	'	'	'	'	'	'	'	'
Inventory write-down	$53	$64	$62	$53	$30	$30	'	'
Contracts revenue	'	'	'	'	'	'	$63	$63

Quarterly_Financial_Data_Unaud5

Quarterly Financial Data (Unaudited) (Adjustments) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Increase (decrease) in gross profit	$604	$784	$742	$831	$841	$852	$776	$891	$2,961	$3,360	'
(Increase) decrease net income (loss) attributable to Weatherford	-271	22	-118	22	-122	70	-849	123	-345	-778	189
Correction of Prior Year Error [Member]	'	'	'	'	'	'	'	'	'	'	'
Increase (decrease) in gross profit	'	'	'	'	-27	'	'	'	'	'	'
(Increase) decrease net income (loss) attributable to Weatherford	'	'	'	'	($31)	'	'	'	'	'	'

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts and Allowances (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for uncollectible accounts receivable [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at Beginning of Period	$84	$91	$59
Expense	102	22	52
(Recovery) and Additions	-12	-8	-1
Other Reductions	-60	-21	-19
Balance at End of Period	114	84	91
Valuation allowance on deferred tax assets [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at Beginning of Period	317	201	173
Expense	264	108	42
(Recovery) and Additions	0	8	0
Other Reductions	-10	0	-14
Balance at End of Period	$571	$317	$201