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Basis Of Presentation (Narrative) (Details) (TruePosition [Member], USD $)
In Millions |
6 Months Ended |
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Jun. 30, 2011
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TruePosition [Member]
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| Revenue recognized | $ 538 |
| Deferred costs | $ 167 |
| X | ||||||||||
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- Definition
Sum of the carrying amounts of deferred costs that are expected to be recognized as a charge against earnings in periods after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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