Note 4 - Schedule of Other Long-Term Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Other Assets Noncurrent Disclosure [Abstract]
Pension assets	$ 147	$ 82
Estimated workers' compensation recoveries	17	17
Long-term receivables, net of reserve of $4 and $4, respectively	11	13
Other	30	31
Total	$ 205	$ 143