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Income (Loss) per Share (Details)	3 Months Ended
Income (Loss) per Share (Details)	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Earnings Per Share, Potentially Dilutive Securities	9,000,000hal_PotentiallyDilutiveSecurities
Ordinarily Dilutive Shares	2,000,000hal_OrdinarilyDilutiveShares
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	11,000,000	0

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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