Stock Transactions and Stock-Based Compensation (Components Of Share-Based Compensation Program) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	$ 117.7	$ 109.9	$ 95.6
Income tax benefit	(35.6)	(34.6)	(32.4)
Total stock-based compensation expense, net of income taxes	82.1	75.3	63.2
RSUs and restricted shares:
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	69.4	61.1	47.9
Income tax benefit	(20.8)	(19.6)	(17.8)
Total stock-based compensation expense, net of income taxes	48.6	41.5	30.1
Stock options:
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Pre-tax compensation expense	48.3	48.8	47.7
Income tax benefit	(14.8)	(15.0)	(14.6)
Total stock-based compensation expense, net of income taxes	$ 33.5	$ 33.8	$ 33.1