Note 6 - Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Current Liabilities [Abstract]
Deferred revenue and customer deposits	$ 43	$ 46
Employment-related liabilities	34	35
Customer rebates	21	21
Workers' compensation	7	9
Restructuring liabilities	5	11
Accrued interest	5
Preferred Stock dividends payable	1	3
Embedded conversion option derivative liability	7	9
Other	26	30
Total	$ 142	$ 164

Accrued interest current.

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Other current liabilities.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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