Stock Plans (Tables)

12 Months Ended

Dec. 31, 2019

Stock Plans [Abstract]

LTIP Target Performance Shares

	Number of Shares (in thousands)
Balance at December 31, 2016		190
LTIP target performance shares granted		211
LTIP target performance shares earned		(41	)
LTIP target performance shares forfeited		(54	)
Balance at December 31, 2017		306
LTIP target performance shares granted		284
LTIP target performance shares earned		(18	)
LTIP target performance shares forfeited		(75	)
Balance at December 31, 2018		497
LTIP target performance shares/units granted		-
LTIP target performance shares/units earned		(381	)
LTIP target performance shares/units forfeited		(20	)
Balance at December 31, 2019		96

Restricted Shares Outstanding

	Number of Shares			Weighted Average Grant Date Fair Value		Aggregate Fair Value
	(in thousands)			(per share)		(in millions)
Balance at December 31, 2016		549		$	78.00	$	28
Restricted stock granted		454		$	47.77	$	3
Restricted stock vested		(240	)	$	80.86	$	2
Restricted stock forfeited		(130	)	$	60.92
Balance at December 31, 2017		633		$	58.63	$	4
Restricted stock granted		2,023		$	8.26	$	5
Restricted stock vested		(221	)	$	66.82	$	(1	)
Restricted stock forfeited		(577	)	$	16.47
Balance at December 31, 2018		1,858		$	16.02	$	4
Restricted stock granted		105		$	2.00	$	-
Restricted stock vested		(1,039	)	$	19.05	$	(1	)
Restricted stock forfeited		(24	)	$	28.30
Balance at December 31, 2019		900		$	10.57	$	1