Weighted Average Shares Outstanding (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

	Three Months Ended September 30,		Nine Months Ended September 30,
(in millions)	2018	2017	2018	2017
Weighted average shares outstanding - basic	1,382.8	1,372.0	1,380.0	1,369.1
Net effect of common stock equivalents	21.0	22.1	19.9	22.7
Weighted average shares outstanding - assuming dilution	1,403.9	1,394.1	1,399.8	1,391.8