Net Loss Per Common Share (Tables)

12 Months Ended

Dec. 31, 2017

Net Loss Per Common Share [Abstract]

Calculation Of Net Income (Loss) Per Common Share

($ in millions and shares in thousands, except per share amounts)	2017		2016		2015
Net loss used for basic and diluted earnings (loss)
per share:
Net loss attributable to Frontier common shareholders	$	(2,018)	$	(587)	$	(316)
Less:  Dividends paid on unvested restricted stock awards		(2)		(3)		(3)
Total basic net loss attributable to Frontier
common shareholders	$	(2,020)	$	(590)	$	(319)
Effect of loss related to dilutive stock units		-		-		-
Total diluted net loss attributable to Frontier
common shareholders	$	(2,020)	$	(590)	$	(319)
Basic earnings (loss) per share:
Total weighted average shares and unvested restricted stock
awards outstanding - basic		78,409		78,142		72,787
Less:  Weighted average unvested restricted stock awards		(673)		(535)		(479)
Total weighted average shares outstanding - basic		77,736		77,607		72,308
Basic net loss per share attributable to Frontier
common shareholders	$	(25.99)	$	(7.61)	$	(4.41)
Diluted earnings (loss) per share:
Total weighted average shares outstanding - basic		77,736		77,607		72,308
Effect of dilutive shares		-		-		-
Total weighted average shares outstanding - diluted		77,736		77,607		72,308
Diluted net loss per share attributable to Frontier
common shareholders	$	(25.99)	$	(7.61)	$	(4.41)