Quarterly report pursuant to Section 13 or 15(d)

Health Net (Schedule of Unaudited Pro Forma Financial Information) (Details)

v3.5.0.2
Health Net (Schedule of Unaudited Pro Forma Financial Information) (Details) - Health Net, Inc. - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Business Acquisition [Line Items]      
Total revenues $ 9,960 $ 32,369 $ 28,617
Net earnings attributable to Centene Corporation $ 85   $ 215
Diluted earnings per share (in dollars per share) $ 0.49   $ 1.25