v3.20.2
Leases (Future Minimum Maturities of Lease Liabilities) (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Operating Leases [Abstract]    
Remainder of 2020 $ 2,447  
2021 4,582  
2022 4,277  
2023 3,889  
2024 3,357  
Thereafter 13,031  
Total lease payments 31,583  
Less imputed interest (5,879)  
Total 25,704 $ 25,255
Finance Leases [Abstract]    
Remainder of 2020 190  
2021 309  
2022 291  
2023 262  
2024 242  
Thereafter 1,632  
Total lease payments 2,926  
Less inputed interest (1,063)  
Total $ 1,863 $ 2,034