Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Additional Stock-Based Compensation Disclosures [Table Text Block]

Stock-based compensation expense and the related tax benefits were as follows:

	2015		2014		2013
Stock-based compensation expense	$	217.8	$	156.0	$	144.9
Tax benefit	76.2		54.6		50.7

Share-based Compensation Awards, Fair Value Assumptions Used [Table Text Block]

The weighted-average fair values of the SVA units granted during the years ended December 31, 2015, 2014, and 2013 were $54.81, $41.97, and $45.17, respectively, determined using the following assumptions:

(Percents)	2015		2014		2013
Expected dividend yield	2.50	%	3.50	%	3.50	%
Risk-free interest rate	0.79		.08-.71		.08-.43
Volatility	20.37		18.87-21.56		18.95-22.37