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Subsequent Event Subsequent Event (Details) (January 2014 Buyback Plan [Member], USD $) In Millions, unless otherwise specified | 1 Months Ended
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Jan. 31, 2014
January 2014 Buyback Plan [Member] |
Subsequent Event [Line Items] |
Share buyback plan, authorized amount | $ 5,000

X
- Definition Amount of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration