Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.20.2
Stockholders' Equity (Details) - USD ($)
shares in Thousands, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Jan. 23, 2020
Jan. 31, 2020
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Business Acquisition [Line Items]          
Common stock repurchases       $ 561 $ 37
Remaining number of shares available under the program (in shares)       5,488  
WellCare Health Plans, Inc.          
Business Acquisition [Line Items]          
Shares issued (in shares) 171,000 171,000      
Consideration transferred, shares valued $ 11,431 $ 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