XML 67 R56.htm IDEA: XBRL DOCUMENT v3.21.2
Leases - Operating lease reconciliation (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Reconciliation of future undiscounted cash flows to the operating lease liabilities and the related ROU assets    
2021 (Excluding the six months ended June 30, 2021) $ 27  
2022 47  
2023 37  
2024 27  
2025 19  
Thereafter 65  
Total future lease payments 222  
Less imputed interest 25  
Present value of future lease payments 197  
Less current lease liabilities 45  
Non-current operating lease liabilities 152 $ 136
Operating lease assets $ 189 $ 173