Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

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

The following is a reconciliation of the components of basic and diluted shares used in the EPS calculation:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2019	2018	2019	2018
	(in millions)
Weighted-average basic common shares outstanding	238.0	237.0	237.5	238.9
Potential number of shares issuable upon exercise of in-the-money stock options under the Long-Term Stock Incentive Plan	—	—	—	—
Average diluted common shares outstanding	238.0	237.0	237.5	238.9