EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2015

EARNINGS PER SHARE

Calculation of basic and diluted EPS

	Three months ended June 30,						Six months ended June 30,
	2015			2014			2015			2014
	(in millions, except per-share amounts)
Basic EPS calculation
Net income / (loss)	$	(68	)	$	246		$	(168	)	$	469
Net income / (loss) allocated to participating securities	—			(4		)	—			(8		)
Net income / (loss) available to common stockholders	$	(68	)	$	242		$	(168	)	$	461
Weighted-average common shares outstanding - basic	382.7			381.8			382.4			381.8
Basic EPS	$	(0.18	)	$	0.63		$	(0.44	)	$	1.21
Diluted EPS calculation
Net income / (loss)	$	(68	)	$	246		$	(168	)	$	469
Net income / (loss) allocated to participating securities	—			(4		)	—			(8		)
Net income / (loss) available to common stockholders	$	(68	)	$	242		$	(168	)	$	461
Weighted average common shares outstanding - basic	382.7			381.8			382.4			381.8
Dilutive effect of potentially dilutive securities	—			—			—			—
Weighted-average common shares outstanding - diluted	382.7			381.8			382.4			381.8
Diluted EPS	$	(0.18	)	$	0.63		$	(0.44	)	$	1.21