Rendering

Component: (Network and Table)
Network
2405402 - Disclosure - Goodwill and Other Acquired Intangible Assets - Goodwill (Details)
(http://www.aetna.com/role/GoodwillAndOtherAcquiredIntangibleAssetsGoodwillDetails)
TableSchedule of Goodwill [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001122304 (http://www.sec.gov/CIK)
Goodwill [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Segments [Axis]Segments [Axis]
Health Care [Member]Group Insurance [Member]Segment Reporting [Domain]Health Care [Member]Group Insurance [Member]Segment Reporting [Domain]
Goodwill [Roll Forward]
 
 
 
 
 
 
Balance, beginning of the period
10,524,000,000  
113,000,000  
10,637,000,000  
10,500,000,000  
113,000,000  
10,613,000,000  
Goodwill, Acquired During Period
0  
0  
0  
12,000,000  
0  
12,000,000  
Goodwill, Other Increase (Decrease)
0  
0  
0  
0  
0  
0  
Goodwill, Purchase Accounting Adjustments
0  
0  
0  
12,000,000  
0  
12,000,000  
Balance, end of the period
10,524,000,000  
 
113,000,000  
 
10,637,000,000  
 
10,524,000,000  
 
113,000,000  
 
10,637,000,000