Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional (Details)

v3.20.2
Leases - Additional (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
lease
Jan. 23, 2020
USD ($)
Lessee, Lease, Description [Line Items]      
Lease terms 12 months 12 months  
Operating lease expense $ 72 $ 134  
Lease liabilities reduced by cash paid 68 131  
ROU assets from new operating leases in exchange for lease liability   59  
Liability from new operating leases   59  
Operating leases not yet commenced   $ 362  
Operating leases not yet commenced, number of significant leases executed | lease   3  
ROU assets acquired 910 $ 910  
Lease liability acquired $ 1,033 $ 1,033  
Weighted average remaining lease term 6 years 10 months 24 days 6 years 10 months 24 days  
Weighted-average discount rate for operating leases 3.80% 3.80%  
Minimum      
Lessee, Lease, Description [Line Items]      
Lease terms 5 years 5 years  
Maximum      
Lessee, Lease, Description [Line Items]      
Lease terms 16 years 16 years  
WellCare Health Plans, Inc.      
Lessee, Lease, Description [Line Items]      
ROU assets acquired     $ 300
Lease liability acquired     $ 300