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Segment Information Balance Sheet (Details) (USD $) In Millions | Jun. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Segments: |  |
Assets | $ 12,301.6 | $ 13,070.8
IAN |  |
Segments: |  |
Assets | 10,353.1 | 10,481.7
CMG |  |
Segments: |  |
Assets | 942.1 | 930.5
Corporate and Other |  |
Segments: |  |
Assets | $ 1,006.4 | $ 1,658.6

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