Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Option valuation assumptions

	Years ended December 31,
	2014		2013		2012
Expected volatility	18.7	%	24.7	%	32.1	%
Expected dividends	2.8	%	2.6	%	3.2	%
Expected life (years)	4		4		5
Risk-free interest rate	1.3	%	1.5	%	0.9	%

Summary of option activity under share based compensation plans

A summary of option activity under the plans at December 31, 2014, and changes during the year then ended is presented below:

			Weighted Average Exercise		Weighted Average Remaining Contractual	Aggregate Intrinsic
(Options in thousands)	Options		Price(i)		Term	Value
						(millions)
Time-based stock options
Balance, beginning of year	7,983		$	35.95
Granted	1,069		$	41.00
Exercised	(2,795	)	$	34.65
Forfeited	(362	)	$	37.31
Expired	(212	)	$	36.05
Balance, end of year	5,683		$	37.45	5 years	$	42
Options vested or expected to vest at December 31, 2014	5,131		$	37.41	5 years	$	38
Options exercisable at December 31, 2014	2,712		$	35.84	4 years	$	24
Performance-based stock options
Balance, beginning of year	5,260		$	32.80
Exercised	(1,201	)	$	29.46
Forfeited	(392	)	$	33.86
Balance, end of year	3,667		$	33.78	3 years	$	40
Options vested or expected to vest at December 31, 2014	3,376		$	33.64	3 years	$	38
Options exercisable at December 31, 2014	2,829		$	32.81	3 years	$	34

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⁽ⁱ⁾  Certain options are exercisable in pounds sterling and are converted to dollars using the exchange rate at December 31, 2014.

Summary of restricted stock unit activity under share based compensation plans

			Weighted Average Grant Date
(Units awarded in thousands)	Shares		Fair Value
Nonvested shares (restricted stock units)
Balance, beginning of year	2,929		$	38.71
Granted	1,750		$	43.03
Vested	(858	)	$	37.19
Forfeited	(327	)	$	37.62
Balance, end of year	3,494		$	41.35