2.2.0.7 true Indebtedness (Details) (USD $) 0612 - Disclosure - Indebtedness (Details) true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD true false false false bhi_NoteOneMember us-gaap_DebtInstrumentAxis xbrldi http://xbrl.org/2006/xbrldi bhi_NoteOneMember us-gaap_DebtInstrumentAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ false 3 true false false false bhi_RevolvingCreditFacilityOneMember us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi bhi_RevolvingCreditFacilityOneMember us-gaap_LineOfCreditFacilityAxis explicitMember false 4 USD true false false false bhi_RevolvingCreditFacilityOneMember us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi bhi_RevolvingCreditFacilityOneMember us-gaap_LineOfCreditFacilityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 5 USD true false false false bhi_RevolvingCreditFacilityTwoMember us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi bhi_RevolvingCreditFacilityTwoMember us-gaap_LineOfCreditFacilityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 6 USD true false false false bhi_RevolvingCreditFacilityThreeMember us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi bhi_RevolvingCreditFacilityThreeMember us-gaap_LineOfCreditFacilityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 7 USD true false false false bhi_NoteTwoMember us-gaap_DebtInstrumentAxis xbrldi http://xbrl.org/2006/xbrldi bhi_NoteTwoMember us-gaap_DebtInstrumentAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ 5 Indebtedness (Textuals) [Abstract] 3 bhi_IndebtednessTextualsAbstract bhi false na duration Indebtedness. false false false false false true false false false false false label false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:stringItemType string Indebtedness. false 6 Maximum revolving credit facility amount 4 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 true true false false 1200000000 1200000000 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 7 Currently available revolving credit facility 4 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 800000000 800000000 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 8 Expiration date of Three-year revolving credit facility agreement 4 us-gaap_LineOfCreditFacilityExpirationDate us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 March 19, 2013 March 19, 2013 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 July 7, 2012 July 7, 2012 true false false 7 false false false false 0 0 true false false us-types:dateStringItemType normalizedstring Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 9 Remaining revolving credit facility 4 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 400000000 400000000 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 10 Terminated 364-day credit agreement 4 us-gaap_RepaymentsOfLinesOfCredit us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 500000000 500000000 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary The cash outflow to pay off an obligation from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 11 Credit agreement period 4 us-gaap_LineOfCreditFacilityRevolvingCreditDescription us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 364-day 364-day false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:stringItemType string Description of the terms of an arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 12 Committed revolving credit facilities 4 us-gaap_LineOfCredit us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false true false false 1700000000 1700000000 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 false 13 Debt Instrument, Face Amount 4 us-gaap_DebtInstrumentFaceAmount us-gaap true credit instant No definition available. false false false false false false false false false false false false 1 false true false false 2911000000 2911000000 false false false 2 false true false false 250000000 250000000 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 250000000 250000000 true false false xbrli:monetaryItemType monetary The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 false 14 Fixed interest rate 4 us-gaap_DebtInstrumentInterestRateStatedPercentage us-gaap true na instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false true false false 0.0575 0.0575 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 0.06 0.06 true false false us-types:percentItemType pure Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 false 15 Debt Instrument, due date 4 bhi_DebtInstrumentDueDate bhi false na instant Debt Instrument, Due Date. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 2011-06-01 2011-06-01 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 2018-06-01 2018-06-01 true false false xbrli:dateItemType date Debt Instrument, Due Date. No authoritative reference available. false 16 Commercial paper can be issued under commercial paper program 4 us-gaap_ProceedsFromIssuanceOfCommercialPaper us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1000000000 1000000000 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary The cash inflow from borrowing by issuing commercial paper. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 17 Maximum maturity of commercial paper issued 4 us-gaap_DebtInstrumentMaturityDateRangeEnd us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 270 270 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false us-types:dateStringItemType normalizedstring When presenting a range of maturity dates, the latest date when the outstanding debt instruments are required to be repaid. May be presented in a variety of ways (for example: year only, month and year, day, month and year, and number of years). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 false 18 Commercial paper outstanding 4 us-gaap_CommercialPaper us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 532000000 532000000 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a(3) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 2 -Article 9 false 19 Committed revolving credit facility expiring on July 7, 2012 4 bhi_CommittedRevolvingCreditFacility bhi false credit instant Committed Revolving Credit Facility. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 true true false false 500000000 500000000 true false false 7 false false false false 0 0 true false false xbrli:monetaryItemType monetary Committed Revolving Credit Facility. No authoritative reference available. false 7 15 false NoRounding UnKnown UnKnown false true