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Note 16 - Leases - Schedule of Other Lease Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating cash flows from operating leases $ 292 $ 323
Investing cash flows from operating leases 27 30
Operating cash flows from finance leases 26 29
Financing cash flows from finance leases 106 113
Leased assets obtained in exchange for finance lease liabilities 0 0
Leased assets obtained in exchange for operating lease liabilities $ 442 $ 93