Note 7 - Leases - Maturities (Details) $ in Millions	Dec. 31, 2022 USD ($)
Operating Leases, 2023	$ 54
Finance Leases, 2023	9
Operating Leases, 2024	51
Finance Leases, 2024	8
Operating Leases, 2025	47
Finance Leases, 2025	7
Operating Leases, 2026	42
Finance Leases, 2026	6
Operating Leases, 2027	37
Finance Leases, 2027	6
Operating Leases, Thereafter	222
Finance Leases, Thereafter	35
Operating Leases, Total lease payments	453
Finance Leases, Total lease payments	71
Operating Leases, Less: interest	140
Finance Leases, Less: interest	19
Operating Leases, Present value of lease liabilities	313
Finance Leases, Present value of lease liabilities	$ 52