XML 135 R116.htm IDEA: XBRL DOCUMENT v3.20.4
Leases (Details) - Contractual Maturities - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Mar. 31, 2019
Leases [Abstract]      
Lease expense for real estate and other operating leases $ 185    
Lease payments due, 2021   $ 103  
Lease payments due, 2022   86  
Lease payments due, 2023   67  
Lease payments due, 2024   50  
Lease payments due, 2025   30  
Lease payments due, thereafter   51  
Total undiscounted lease payments   387  
Less: present value adjustment   $ 25  
Operating Lease, Liability, Statement of Financial Position [Extensible List]   us-gaap:OtherLiabilities us-gaap:OtherLiabilities
Operating lease liability   $ 362