NOTES TO CONSOLIDATED FINANCIAL STATEMENTS OF AMERICAN AIRLINES GROUP INC. The components of lease expense were as follows (in millions): Included in the table above is $236 million and $226 million of operating lease cost under our capacity purchase agreement with Republic for the years ended December 31, 2019 and 2018, respectively. We hold a 25% equity interest in Republic Holdings, the parent company of Republic. Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate): 92 December 31, 2019 2018 Operating leases: Operating lease ROU assets $ 8,737 $ 9,151 Current operating lease liabilities $ 1,708 $ 1,654 Noncurrent operating lease liabilities 7,421 7,902 Total operating lease liabilities $ 9,129 $ 9,556 Finance leases: Property and equipment, at cost $ 954 $ 936 Accumulated amortization (447 ) (391 ) Property and equipment, net $ 507 $ 545 Current finance lease liabilities $ 112 $ 81 Noncurrent finance lease liabilities 558 613 Total finance lease liabilities $ 670 $ 694 Weighted average remaining lease term (in years): Operating leases 7.4 7.6 Finance leases 6.2 7.4 Weighted average discount rate: Operating leases 4.7 % 4.6 % Finance leases 6.2% 6.5% Year Ended December 31, 2019 2018 Operating lease cost $ 2,027 $ 1,907 Finance lease cost: Amortization of assets 79 78 Interest on lease liabilities 43 48 Variable lease cost 2,558 2,353 Total net lease cost $ 4,707 $ 4,386