Note 6 - Other Current Liabilities (Details) (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2018	Sep. 03, 2013
Other Current Liabilities [Abstract]
Disposal group including discontinued operation consideration		$ 325
Discontinued operation contingent consideration		$ 35
Maximum potential payment related to deferred consideration on disposed businesses	$ 14

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

No definition available.

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant