Stock Benefit Plans (Summary Of The Status Of Restricted Stock Unit And Performance Unit Awards) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock Units (RSUs) [Member]
Restricted Stock Units and Performance Stock Units [Roll Forward]
Non-vested balance at January 1, 2013 (in shares)	8,964,238
Granted (in shares)	842,433
Vested (in shares)	(5,310,027)
Forfeited (in shares)	(245,835)
Adjustment due to performance (in shares)	0
Non-vested balance at December 31, 2013 (in shares)	4,250,809	8,964,238
Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested balance at January 1, 2013 (in dollars per share)	$ 28.58
Granted (in dollars per share)	$ 36.70	$ 31.96	$ 30.46
Vested (in dollars per share)	$ 26.96
Forfeited (in dollars per share)	$ 31.29
Adjustment due to performance (in dollars per share)	$ 0.00
Non-vested balance at December 31, 2013 (in dollars per share)	$ 32.04	$ 28.58
Performance Shares [Member]
Restricted Stock Units and Performance Stock Units [Roll Forward]
Non-vested balance at January 1, 2013 (in shares)	730,838
Granted (in shares)	289,200
Vested (in shares)	(76,844)
Forfeited (in shares)	(19,412)
Adjustment due to performance (in shares)	37,381
Non-vested balance at December 31, 2013 (in shares)	961,163	730,838
Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested balance at January 1, 2013 (in dollars per share)	$ 31.32
Granted (in dollars per share)	$ 36.54	$ 31.89	$ 30.60
Vested (in dollars per share)	$ 31.22
Forfeited (in dollars per share)	$ 32.71
Adjustment due to performance (in dollars per share)	$ 31.24
Non-vested balance at December 31, 2013 (in dollars per share)	$ 32.87	$ 31.32