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Commitments and Contingencies (Narrative) (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014 numberoflawsuits
Commitments and Contingencies [Abstract] |
Other material lawsuits pending | 0
Number of operating lease term extensions | 2
Lease renewal term | 5 years
Operating leases future minimum payments due | $ 42
Lease incentives | 6
Loss Contingencies [Line Items] |
City of Detroit UTGO Bonds | 369
National [Member] |
Loss Contingencies [Line Items] |
City of Detroit UTGO Bonds | 88
Reinstated [Member] |
Loss Contingencies [Line Items] |
City of Detroit UTGO Bonds | 288
Reinstated [Member] | National [Member] |
Loss Contingencies [Line Items] |
City of Detroit UTGO Bonds | $ 70

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- Definition City Of Detroit Utgo Bonds + References No definition available. + Details
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- Definition Amount of lease incentives from lessor to fund certain leasehold improvements. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Number of times lessee can extend the term of the operating lease. + References No definition available. + Details
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- Definition Other material lawsuits pending + References No definition available. + Details
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- Details
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- Definition Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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