Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Components of basic and diluted shares used in EPS [Table Text Block]

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

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2017	2016	2017	2016
	(in millions)
Weighted-average basic common shares outstanding	240.5	217.7	240.4	203.7
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-Term Stock Incentive Plan	0.1	—	0.1	—
Average diluted common shares outstanding	240.6	217.7	240.5	203.7