Share-Based Compensation Plans (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended								12 Months Ended					34 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Stock Options [Member]	Dec. 31, 2012 Stock Options [Member]	Dec. 31, 2011 Stock Options [Member]	Dec. 31, 2013 Restricted Stock Units [Member]	Dec. 31, 2012 Restricted Stock Units [Member]	Dec. 31, 2013 Restricted Stock Units and Performance Restricted Stock Units [Member]	Dec. 31, 2013 Performance Restricted Stock Units [Member]		Dec. 31, 2012 Performance Restricted Stock Units [Member]		Dec. 31, 2014 Performance Restricted Stock Units [Member]	Dec. 31, 2013 2010 Plan [Member]	Dec. 31, 2013 Two Thousand And Thirteen Plan [Member]	Dec. 31, 2013 Restricted Stock Units - Treasury Stock [Member]		Dec. 31, 2012 Restricted Stock Units - Treasury Stock [Member]
Maximum award, number of shares															32,000,000	42,000,000
Multiplier for grant award															2.33	3.13
Vesting period, years				3 years			3 years			3 years							5 years
Contractual term, years				10 years
Dividends per share		$ 0.23	$ 0.23
Weighted-average grant-date fair value per share					$ 3.55	$ 6.51
Unrecognized compensation cost				$ 0.7					$ 64.4								$ 1.6
Unrecognized compensation costs, recognized over a weighted average period				10 months 24 days					2 years
Incremental compensation cost associated with modification of stock award recognized												0.3		0.9
Fair value vested during period							19.4
Granted, restricted stock and units							2,323,000			1,977,000									200,000
Granted, weighted-average grant-date fair value							$ 20.36			$ 20.17							$ 21.69
Vested, restricted stock and units							1,004,000			0							40,000
Nonvested, ending balance, restricted stock and units							4,234,000	3,467,000		4,383,000	[1]	2,909,000	[1]				160,000	[1]
Compensation cost for share-based payments	$ 43.3	$ 41.1	$ 36.6														$ 1.4		$ 1.4

[1] Based on initial target payout.