Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule Of Weighted Average Number Of Shares Basic And Diluted

A reconciliation of the components of basic and diluted shares used in the EPS calculation follows:

	Year Ended December 31,
	2015	2014	2013
	(in millions)
Weighted-average basic common shares outstanding	176.1	175.8	175.4
Potential number of shares issuable under the Company's LTSIP	0.2	0.3	0.6
Weighted-average diluted common shares outstanding	176.3	176.1	176.0