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Litigation - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
1 Months Ended | 3 Months Ended | |
|---|---|---|---|
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May 16, 2012
|
Mar. 31, 2013
State
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Dec. 31, 2011
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| Contingencies And Commitments [Line Items] | |||
| Reserved cost and potential exposure related to litigation and regulatory matters | $ 45 | $ 45 | |
| Legal and professional fees | 5 | ||
| Number of states for Attorneys General | 44 | ||
| Global settlement reflects current estimated range of loss | 50 | ||
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Maximum [Member]
|
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| Contingencies And Commitments [Line Items] | |||
| Attorneys' fees | $ 5 | ||
| X | ||||||||||
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- Definition
Attorney fee. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Expenses related to loss contingency range of possible loss. No definition available.
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| X | ||||||||||
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- Definition
Legal and professional fees. No definition available.
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| X | ||||||||||
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- Definition
Reserved cost and potential exposure related to litigation and regulatory matters. No definition available.
|
| X | ||||||||||
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- Definition
The number of states the entity operates in as of the balance sheet date. No definition available.
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