Stockholders' Equity

3 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Stockholders' Equity

9. Stockholders’ Equity

The following provides a reconciliation between basic and diluted earnings per share attributable to common stockholders:

	Three Months Ended   March 31,
millions except per-share amounts	2015			2014
Net income (loss)
Net income (loss) attributable to common stockholders	$	(3,268	)	$	(2,669	)
Less distributions on participating securities	1			—
Basic	$	(3,269	)	$	(2,669	)
Diluted	$	(3,269	)	$	(2,669	)
Shares
Average number of common shares outstanding—basic	507			504
Average number of common shares outstanding—diluted	507			504
Excluded (1)	11			11
Net income (loss) per common share
Basic	$	(6.45	)	$	(5.30	)
Diluted	$	(6.45	)	$	(5.30	)
Dividends per common share	$	0.27		$	0.18

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⁽¹⁾  Inclusion of certain shares would have had an anti-dilutive effect.