XML 67 R52.htm IDEA: XBRL DOCUMENT v3.19.2
Leases - Supplemental balance sheet information (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
Jun. 30, 2018
Operating leases:        
Operating lease right-of-use assets (included in Other assets) $ 196 $ 214    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other Assets, Noncurrent      
Current operating lease liabilities (included in Other current liabilities) $ 67      
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Current operating lease liabilities (included in Other current liabilities)      
Noncurrent operating lease liabilities (included in Other long-term liabilities) $ 129      
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Noncurrent operating lease liabilities (included in Other long-term liabilities)      
Total operating lease liabilities $ 196 $ 214    
Finance leases:        
Property, plant and equipment, net 3,216   $ 3,085 $ 3,025
Current finance lease liabilities (included in Long-term debt due within one year) $ 6      
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Current finance lease liabilities (included in Long-term debt due within one year)      
Noncurrent finance lease liabilities (included in Long-term debt) $ 35      
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Noncurrent finance lease liabilities (included in Long-term debt)      
Total finance lease liabilities $ 41      
Weighted-average remaining lease term (in years):        
Operating leases weighted-average remaining lease term (in years) 4 years 9 months 18 days      
Finance leases weighted-average remaining lease term (in years) 7 years      
Weighted-average discount rate:        
Operating leases (as a percent) 3.80%      
Finance leases (as a percent) 5.20%      
Property, plant and equipment finance leases        
Finance leases:        
Property, plant and equipment $ 74      
Accumulated amortization (30)      
Property, plant and equipment, net $ 44