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Note 9 - Summary of Undiscounted Cash Flows for Next Five Years and Thereafter to Finance Lease Liabilities and Operating Lease Liabilities Recorded on Balance Sheet (Details) $ in Millions | Jun. 30, 2019 USD ($)
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Leases [Abstract] |
Operating Leases, Q3 - Q4 2019 | $ 12
Operating Leases, 2020 | 25
Operating Leases, 2021 | 9
Operating Leases, 2022 | 6
Operating Leases, 2023 | 5
Operating Leases, Thereafter | 29
Operating Leases, Total minimum lease payments | 86
Operating Leases, Less: amount of lease payments representing interest | 32
Operating Leases, Present value of future minimum lease payments | 54
Operating Leases, Less: current obligations under leases | (26)
Operatibg Leases, Long-term lease obligations | 28
Finance Leases, Q3 - Q4 2019 | 1
Finance Leases, 2020 | 1
Finance Leases, 2021 | 1
Fiannce Leases, 2022 | 1
Finance Leases, Thereafter | 113
Finance Leases, Total minimum lease payments | 117
Finance Leases, Less: amount of lease payments representing interest | (113)
Finance Leases, Present value of future minimum lease payments | 4
Finance Leases, Less: current obligations under leases | (1)
Finance Leases, Long-term lease obligations | $ 3

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