Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Calculations For Basic And Diluted Earnings Per Share

The table shows calculations for basic and diluted earnings per share:

(In millions except per share data)	Three months ended March 31,
	2016		2015
Numerator:
Net income—basic and diluted	$	188	$	128
Denominator:
Basic weighted-average common shares outstanding	164.2		164.0
Effect of share-based awards:
Stock options	1.0		1.0
Nonvested shares	0.8		0.6
Diluted weighted-average shares	166.0		165.6
Earnings per share:
Basic	$	1.14	$	0.78
Diluted	1.13		0.77
Number of anti-dilutive share-based awards:	0.4		0.7