Stock Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

A summary of the status of the Company’s stock option awards as of December 31, 2012 and changes during the year then ended is presented below:



	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value ($000)
Balance at January 1, 2012	38,895,109		$	29.21
Granted	3,547,733		$	31.88
Exercised	(6,892,731	)	$	26.01
Canceled or exchanged	—		—
Forfeited	(860,022	)	$	27.69
Expired	(2,644,296	)	$	42.85
Balance at December 31, 2012	32,045,793		$	29.10	4.5 years	186,467
Options vested or expected to vest at December 31, 2012	32,004,297		$	29.12	4.4 years	185,871
Options exercisable at December 31, 2012	16,115,605		$	28.85	3.8 years	106,606

Black-Scholes Option Pricing [Member]

The assumptions used in the Black-Scholes option pricing valuation model for options granted by the Company in 2012, 2011 and 2010 are as follows:

Deferred Stock Units [Member]

A summary of the status of the Company's restricted stock awards as of December 31, 2012 and changes during the period then ended is presented below:



	Shares		Weighted Average Grant Date Fair Value
Non-vested balance at January 1, 2012	51,700		$	46.86
Granted	—		$	—
Vested	(20,000	)	$	46.14
Forfeited	—		$	—
Non-vested balance at December 31, 2012	31,700		$	47.31

Restricted Stock Units And Performance Stock Units [Member]



	Restricted Stock Units				Performance Stock Units
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Non-vested balance at January 1, 2012	15,058,428		$	25.43	368,346		$	30.60
Granted	2,797,287		$	31.96	461,756		$	31.89
Vested	(8,209,388	)	$	23.97	(25,129	)	$	30.83
Forfeited	(682,089	)	$	28.49	(81,075	)	$	31.31
Adjustment due to performance	—		$	—	6,940		$	30.60
Non-vested balance at December 31, 2012	8,964,238		$	28.58	730,838		$	31.32