Network: 309010 - Disclosure - Note I. Business Segments (http://www.abc.com/role/BusinessSegments)

Line Label Object Class Period Type Balance Name
1 309010 - Disclosure - Note I. Business Segments [Network]

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 http://www.abc.com/role/BusinessSegments
2 Business Segment Information [Table] [Table]

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 abc:BusinessSegmentInformationTable
3 Report Date [Axis] [Axis]

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 us-gaap:CreationDateAxis
4 Financial Statements Date [Domain] [Domain]

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 us-gaap:DefaultFinancialStatementsDateMember
5 As Reported February 12, 2011 [Member] [Member] For Period

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 abc:AsReportedFebruary122011Member
6 Legal Entity [Axis] [Axis]

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 dei:LegalEntityAxis
7 Consolidated Entity [Domain] [Domain]

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 dei:EntityDomain
8 Business Segments [Axis] [Axis]

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 us-gaap:StatementBusinessSegmentsAxis
9 Business Segments, All [Domain] [Domain]

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 us-gaap:SegmentDomain
10 Business Segment Alpha [Member] [Member] For Period

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 abc:BusinessSegmentAlphaMember
11 Business Segment B [Member] [Member] For Period

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 abc:BusinessSegmentBMember
12 Business Segment C [Member] [Member] For Period

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 abc:BusinessSegmentCMember
13 Business Segment D [Member] [Member] For Period

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 abc:BusinessSegmentDMember
14 Business Segment Information [Line Items] [Line Items]

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 abc:BusinessSegmentInformationLineItems
15 Business Segment Information [Hierarchy] [Abstract]

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 abc:BusinessSegmentInformationHierarchy
16 Revenues [Concept] Monetary For Period Credit us-gaap:Revenues
17 Operating Expenses [Concept] Monetary For Period Debit us-gaap:OperatingExpenses
18 Selling, general and administrative expense [Concept] Monetary For Period Debit us-gaap:SellingGeneralAndAdministrativeExpense
19 Depreciation [Concept] Monetary For Period Debit us-gaap:Depreciation
20 Operating Income (Loss) [Concept] Monetary For Period Credit us-gaap:OperatingIncomeLoss
21 Capital Additions [Concept] Monetary For Period Credit us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
22 Assets [Concept] Monetary As Of Debit us-gaap:Assets