XML 33 R125.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Leases (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
renewal_option
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Operating Leased Assets [Line Items]      
Percentage of lease obligations 85.00%    
Term of contract 12 months    
Renewal term increments 1 year    
Operating lease ROU asset amortization $ 38    
Other noncash operating lease costs 16    
Rent expense on operating leases under previous lease standard   $ 144 $ 139
Short-term lease commitments $ 77    
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
Operating leases, future minimum payments due   367  
2019   76  
2020   48  
2021   39  
2022   32  
2023   29  
Thereafter   $ 143  
Minimum      
Operating Leased Assets [Line Items]      
Number of renewal options | renewal_option 1