Income Per Common Share (Tables)

3 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Reconciliation of basic and diluted income per common share

The following table presents basic and diluted income per common share information for the three months ended June 30, 2013 and 2012.

	Three Months Ended June 30,
	2013			2012
	(in millions, except per share amounts)
Basic income per common share:
Net income	$	335		$	240
Less: Net income allocable to participating securities	(4		)	(3		)
Net income allocable to common shares	$	331		$	237
Weighted average common shares outstanding	450			465
Basic income per common share	$	0.74		$	0.51
Diluted income per common share:
Net income	$	335		$	240
Less: Net income allocable to participating securities	(4		)	(3		)
Net income allocable to common shares	$	331		$	237
Weighted average shares outstanding and common share equivalents:
Weighted average common shares outstanding	450			465
Weighted average effect of share-based payment awards	1			2
Denominator in calculation of diluted income per share	451			467
Diluted income per common share	$	0.73		$	0.51