Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.20.1
Stockholders' Equity (Details) - USD ($)
shares in Thousands, $ in Millions
3 Months Ended
Jan. 23, 2020
Mar. 31, 2020
Mar. 31, 2019
Business Acquisition [Line Items]      
Common stock repurchases   $ 558 $ 35
Remaining number of shares available under the program (in shares)   5,488  
WellCare Health Plans, Inc.      
Business Acquisition [Line Items]      
Shares issued (in shares) 171,000    
Consideration transferred, shares valued $ 11,431    
Cash paid 6,079    
Consideration transferred related to fair value of replacement equity awards associated with pre-combination service $ 95    
Stock Repurchase Program      
Business Acquisition [Line Items]      
Common stock repurchases (in shares)   8,672  
Common stock repurchases   $ 500