Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Share-Based Compensation

Summary of assumptions to estimate the fair value of stock option awards

	For the three months ended March 31,
	2015		2014
Weighted-average volatility	26.66	%	27.35	%
Dividend yield	1.55	%	1.79	%
Expected term (in years)	6.06		6.07
Risk-free interest rate	1.78	%	1.99	%

Summary of options activity and related information under the Plan

			Weighted				Weighted
			Average		Aggregate		Average
	Number of		Exercise		Intrinsic		Remaining
	Shares		Price		Value		Contractual
Options	(in thousands)		(per share)		(in thousands) (1)		Term
Outstanding at January 1, 2015	3,971		$	57.40
Granted	374		90.46
Exercised	(332	)	64.25
Forfeited or expired	(10	)	66.36
Outstanding at March 31, 2015	4,003		$	59.90	$	117,325	5.77
Exercisable at March 31, 2015	2,850		$	55.34	$	96,155	4.58

(1) Includes in-the-money options only.

Summary of changes in unvested options and related information under the Plan

			Weighted Average
	Number of		Grant Date
	Shares		Fair Value
Unvested Options	(in thousands)		(per share)
Unvested at January 1, 2015	1,269		$	14.80
Granted	374		21.80
Vested	(488	)	14.82
Forfeited	(2	)	13.17
Unvested at March 31, 2015	1,153		$	17.07

Share-based compensation

Summary of changes in restricted stock and related information under the Plan

			Weighted Average
	Number of		Grant Date
	Shares		Fair Value
Restricted Stock (1)	(in thousands)		(per share)
Unvested at January 1, 2015	525		$	60.60
Granted	99		90.46
Vested	(130	)	54.97
Forfeited	(1	)	58.22
Unvested at March 31, 2015	493		$	68.09

(1) Includes restricted stock units.

Cash-settled restricted stock units

Share-based compensation

Summary of changes in restricted stock and related information under the Plan

	Number of
	Shares
Cash-Settled Restricted Stock Units	(in thousands)
Unvested at January 1, 2015	174
Granted	14
Vested	(43	)
Forfeited	(1	)
Unvested at March 31, 2015	144