Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

v3.10.0.1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Earnings attributable to Centene Corporation        
Earnings attributable to Centene Corporation $ 19 $ 205 $ 659 $ 598
Shares used in computing per share amounts:        
Weighted average number of common shares outstanding (in shares) 205,295 172,508 191,628 172,314
Common stock equivalents (as determined by applying the treasury stock method) (in shares) 4,227 4,407 4,005 4,100
Weighted average number of common shares and potential dilutive common shares outstanding (in shares) 209,522 176,915 195,633 176,414
Net earnings per common share attributable to Centene Corporation:        
Basic earnings per common share (in dollars per share) $ 0.09 $ 1.19 $ 3.44 $ 3.47
Diluted earnings per common share (in dollars per share) $ 0.09 $ 1.16 $ 3.37 $ 3.39
Anti-dilutive restricted stock and restricted stock units excluded from the calculation of diluted earnings per common share (in shares) 10 4 27 27