Note 1 - Basis of Presentation - Disposal of Assets and Purchase of Property and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Proceeds from sale of assets	$ 0	$ 0	$ 3	$ 0
Proceeds from FCC Repack (Note 1)	15	4	32	7
Net book value of assets disposed	(1)	(1)	(5)	(1)
Other	0	0	(3)	0
Total	$ 14	$ 3	27	6
Recurring purchases - operations			38	16
Repack			34	17
Repack related			1	2
Total			$ 73	$ 35