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Leases (Tables)
12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Schedule of Leases
The following table details the amounts and locations of lease assets and liabilities on the consolidated balance sheet:
December 31,20202019
Lease assets:Balance Sheet Classification
Operating lease ROU assetsOther assets$937 $577 
Lease liabilities:
Operating lease liabilitiesAccrued expenses and other liabilities$1,033 $650 
Schedule of Lease Cost and Lease Term and Discount Rate
The components of lease expense are as follows:
Year Ended December 31,20202019
Lease Cost (1)
Operating lease cost (2)
$166 $137 
Variable lease cost (3)
34 34 
(1) Rent expense related to operating leases was $146 million in 2018.
(2) Includes short-term leases, which are immaterial.
(3) Includes payments that are entirely variable and amounts that represent the difference between payments based on an index or rate that would be reflected in the lease liability and what is actually incurred.

The following tables present supplemental lease information:
December 31,20202019
Lease Term and Discount Rate
Weighted-average remaining lease term (years)7.027.15
Weighted-average discount rate2.86 %3.42 %
Schedule of Maturity of Lease Liabilities
Maturity of Lease Liabilities
Operating Leases (1)
2021$182 
2022193 
2023166 
2024134 
2025117 
Thereafter340 
Total lease payments1,132 
Less: Interest99 
Present value of lease liabilities$1,033 
(1) Operating lease payments exclude $24 million of legally binding minimum lease payments for leases signed but not yet commenced. These leases will commence between 2021 and 2022 with lease terms of three years to 15 years.