Acquisitions and Dispositions (Details) (USD $) In Billions, except Share data, unless otherwise specified	Dec. 31, 2014
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Stock conversion rate	1.12hal_Stockconversionrate
Cash Consideration	$ 19.00hal_CashConsiderationpershare
Total Share Consideration	490,000,000hal_TotalShareConsideration
Total cash consideration	$ 8.3hal_Totalcashconsideration
Senior unsecured bridge facility	$ 8.6hal_Seniorunsecuredbridgefacility

Per acquisition agreement, the cash consideration to be given for each Baker Hughes common share.

No definition available.

Name:	hal_CashConsiderationpershare
Namespace Prefix:	hal_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Commitment letter for an $8.6 billion senior unsecured bridge facility, which is greater than expected cash consideration required upon closing of the Baker Hughes acquisition.

+ References

No definition available.

+ Details

Name:	hal_Seniorunsecuredbridgefacility
Namespace Prefix:	hal_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Acquisition agreement with Baker Hughes for the right to receive 1.12 Halliburton shares for each share outstanding of Baker Hughes common stock.

+ References

No definition available.

+ Details

Name:	hal_Stockconversionrate
Namespace Prefix:	hal_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Estimated total cash consideration to be paid for Baker Hughes acquisition.

+ References

No definition available.

+ Details

Name:	hal_Totalcashconsideration
Namespace Prefix:	hal_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Estimated total shares to be paid for Baker Hughes acquisition.

+ References

No definition available.

+ Details

Name:	hal_TotalShareConsideration
Namespace Prefix:	hal_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration