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Leases - Balance Sheet Summary (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Jan. 01, 2019
--- | --- | ---
Operating Leases: |  |
Lease liability | $ 46 |
Financing Leases: |  |
Lease liability | 68 |
Pipeline and storage |  |
Operating Leases: |  |
ROU assets, net | 24 |
Lease liability | 25 |
Financing Leases: |  |
ROU assets, net | 31 | $ 1
Lease liability | 42 |
Railcars |  |
Operating Leases: |  |
ROU assets, net | 13 |
Lease liability | 13 |
Real estate and other |  |
Operating Leases: |  |
ROU assets, net | 10 |
Lease liability | 8 |
Financing Leases: |  |
ROU assets, net | 26 | $ 25
Lease liability | $ 26 |

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