Note 19 - Revenues and Loss from Operations (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Continuing Operations [Member] \| MIR Bidco, SA [Member] \| Other Operating (Expense) Income, Net [Member]
Segment Reporting Information [Line Items]
Income from transition services agreement with purchaser	$ 0	$ 2	$ 0	$ 4

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration