Note 8 - Debt and Finance Leases and Related Maturities and Interest Rates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Carrying Value	$ 254	$ 19
Current Portion, Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying Value	1	2
Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying Value	$ 253	17
RED-Rochester, LLC [Member] | Current Portion, Long-term Debt [Member]
Debt Instrument [Line Items]
Maturity	2033
Weighted-Average Effective Interest Rate	11.42%
Carrying Value	$ 1	1
RED-Rochester, LLC [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Maturity	2033
Weighted-Average Effective Interest Rate	11.42%
Carrying Value	$ 12	12
Finance leases [Member] | Current Portion, Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying Value		1
Finance leases [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying Value	$ 1	3
Term Notes [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Maturity	2026
Weighted-Average Effective Interest Rate	13.85%
Carrying Value	$ 224
2021 Convertible Notes [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Maturity	2026
Weighted-Average Effective Interest Rate	17.26%
Carrying Value	$ 15
Other Debt [Member] | Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying Value	$ 1	$ 2