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Leases (Schedule of Right-of-use Assets and Lease Liabilities) (Details) $ in Millions | Jun. 30, 2019 USD ($)
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Leases [Abstract] |  |
Right-of-use assets, finance lease | $ 209 |
Finance lease liabilities: |  |
Current lease liabilities, finance lease | 7 | [1]
Long-term lease liabilities, finance lease | 239 |
Total lease liabilities, finance lease | 246 |
Right-of-use assets, operating lease | 64 |
Operating lease liabilities: |  |
Current lease liabilities, operating lease | 39 | [1]
Long-term lease liabilities, operating lease | 24 |
Total lease liabilities, operating lease | 63 |
Right-of-use assets | 273 |
Lease liabilities: |  |
Current lease liabilities | 46 | [1]
Long-term lease liabilities | 263 |
Total lease liabilities | $ 309 | [2]
[1] | Current lease liabilities are included in other current liabilities on the consolidated balance sheets.
[2] | Under previous lease accounting standard, ASC 840, Devon’s lease obligations as of December 31, 2018 expiring in each of the next 5 years and thereafter were $61 million for 2019, $48 million for 2020, $18 million for 2021, $9 million for 2022, $8 million for 2023 and $33 million thereafter

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