Note 3 - Acquisitions and Divestitures - Assets Sold from the Raycom Merger (Details) - USD ($) $ in Millions		3 Months Ended
	Jan. 02, 2019	Mar. 31, 2019	Mar. 31, 2018
Proceeds from sale of television stations		$ 231
WTNZ-TV, WFXG-TV, WPGX-TV, and WDFX-TV [Member] | Lockwood Broadcasting, Inc. [Member]
Proceeds from sale of television stations	$ 67
KXXV-TV, KRHD-CD, and WTXL-TV [Member] | Scripps Media, Inc. [Member]
Proceeds from sale of television stations	55
WTOL-TV and KWES-TV [Member] | TEGNA, Inc. [Member]
Proceeds from sale of television stations	109
WTNZ-TV, WFXG-TV, WPGX-TV, WDFX-TV, KXXV-TV, KRHD-CD, WTXL-TV, WTOL-TV and KWES-TV [Member]
Proceeds from sale of television stations	$ 231