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Network
1002501 - Statement - Consolidated Balance Sheets (Parentheticals)
(http://www.aetna.com/role/ConsolidatedBalanceSheetsParentheticals)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001122304 (http://www.sec.gov/CIK)
Consolidated Balance Sheets (Parenthetical) [Abstract]Period [Axis]
2013-12-31
2013-05-07
2012-12-31
Consolidated Balance Sheets (Parenthetical) [Abstract]
 
 
 
Common Stock, Par or Stated Value Per Share
.01  
 
.01  
Common Stock, Shares Authorized
2,600,000,000  
 
2,600,000,000  
Common Stock, Shares, Issued
362,200,000  
133,700,000  
327,600,000  
Common Stock, Shares, Outstanding
362,200,000  
 
327,600,000