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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
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USD ($) / shares
USD ($)
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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
$Duration_7_1_2009_To_9_30_2009http://www.sec.gov/CIK0000014272duration2009-07-01T00:00:002009-09-30T00:00:00Unit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit12Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$7falsefalseUSDfalsefalse4/1/2009 - 6/30/2009
USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
$Duration_1_1_2009_To_12_31_2009http://www.sec.gov/CIK0000014272duration2009-01-01T00:00:002009-12-31T00:00:00Unit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit15Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit12Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$11falsefalseUSDfalsefalse1/1/2008 - 12/31/2008
USD ($)
USD ($) / shares
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perations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 28
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph b(2)
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1/1/2010 - 12/31/2010
USD ($)
$Duration_1_1_2010_To_12_31_20102223http://www.sec.gov/CIK0000014272duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNet Earnings of Discontinued Operations used for EPS Calculation [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldibmy_NetEarningsFromDiscontinuedOperationsForEarningsPerShareCalculationMemberus-gaap_StatementClassOfStockAxisexplicitMemberUnit1
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1/1/2009 - 12/31/2009
USD ($)
$Duration_1_1_2009_To_12_31_200915http://www.sec.gov/CIK0000014272duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNet Earnings of Discontinued Operations used for EPS Calculation [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldibmy_NetEarningsFromDiscontinuedOperationsForEarningsPerShareCalculationMemberus-gaap_StatementClassOfStockAxisexplicitMemberUnit1St
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1/1/2008 - 12/31/2008
USD ($)
$Duration_1_1_2008_To_12_31_2008432http://www.sec.gov/CIK0000014272duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNet Earnings of Discontinued Operations used for EPS Calculation [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldibmy_NetEarningsFromDiscontinuedOperationsForEarningsPerShareCalculationMemberus-gaap_StatementClassOfStockAxisexplicitMemberUnit1S
tandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse4false0us-gaap_IncomeLoss
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) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 28
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
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falsefalse9falsefalsefalse00 falsefalsefalsefalsefalse10truefalsefalse73310000007331falsetruefalsefalsefalse11truefalsefalse25370000002537falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncome/Loss attributable to discontinued operations attributable to the parent company, net of tax, that is used in the basic earnings per share calculation.No authoritative reference available
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