Stock-Based Incentive Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2015

Stock-Based Incentive Compensation Plans [Abstract]

Total compensation expense for all stock-based incentive compensation plans

	For the Years Ended December 31,
	2015		2014		2013
Stock options	$	7	$	9	$	9
Performance shares		12		12		10
SARs		-		2		5
RSUs		22		15		16
Total	$	41	$	38	$	40
Recognized tax benefit	$	14	$	13	$	14

Total unrecognized compensation expense for all stock-based incentive compensation plans

	For the Years Ended December 31,
	2015			2014			2013
			Weighted-			Weighted-			Weighted-
			Average			Average			Average
	Expense		Period	Expense		Period	Expense		Period
Stock options	$	8	1.4	$	8	1.5	$	9	1.9
Performance shares		11	1.0		9	1.5		9	1.5
SARs		1	3.0		3	3.2		3	3.4
RSUs		24	1.0		21	1.0		18	1.2
Total unrecognized stock-based
incentive compensation expense	$	44		$	41		$	39

Option price assumptions used for stock option incentive plans

	For the Years Ended December 31,
	2015		2014		2013
Weighted-average fair value per option granted	$	13.00	$	12.95	$	7.39
Assumptions:
Dividend yield		1.9%		2.2%		2.4%
Expected volatility		28.0%		33.2%		34.1%
Risk-free interest rate		1.4-1.7%		0.9-1.8%		0.6-0.9%
Expected life (in years)		5.5		5.4		5.6

Summary of activity for stock options with performance conditions

						Weighted-
			Weighted-			Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price			Term	Value
Outstanding as of December 31, 2014	1,071,747		$	47.93
Granted – original	90,239			57.65
Exercised (includes shares tendered)	(131,121	)		39.60
Forfeited or expired	(22,785	)		40.46
Outstanding as of December 31, 2015	1,008,080		$	50.05		2.28	$	3
Vested or expected to vest as of December 31, 2015 (1)	952,889		$	49.96		2.21	$	3
Exercisable as of December 31, 2015	897,697		$	49.86		2.13	$	2

⁽¹⁾ Includes estimated forfeitures.

Summary of activity for stock options with service conditions

						Weighted-
			Weighted-			Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price			Term	Value
Outstanding as of December 31, 2014	3,923,693		$	38.65
Granted – original	502,664			58.25
Exercised (includes shares tendered)	(1,249,442	)		39.05
Forfeited or expired	(152,567	)		48.76
Outstanding as of December 31, 2015	3,024,348		$	41.23		6.14	$	38
Vested or expected to vest as of December 31, 2015 (1)	2,880,077		$	40.97		5.99	$	36
Exercisable as of December 31, 2015	2,017,776		$	37.65		5.04	$	32

⁽¹⁾ Includes estimated forfeitures.

Summary of activity for performance shares

				Weighted-
				Average
			Grant-Date
	Shares			Fair Value
Nonvested as of December 31, 2014	702,426			$	37.36
Granted	161,255				68.35
Vested	(291,455	)			29.69
Forfeited	(34,339	)			49.05
Nonvested as of December 31, 2015	537,887			$	49.52

Option price assumptions used for stock appreciation rights plan

	For the Years Ended December 31,
	2015		2014		2013
Weighted-average fair value per SAR granted	$	14.22	$	13.64	$	7.47
Assumptions:
Dividend yield		1.6%		1.5%		2.2%
Expected volatility		29.8%		32.7%		30.5%
Risk-free interest rate		1.8%		1.7%		1.0%
Expected life (in years)		5.0		5.0		5.0

Summary of activity for stock appreciation rights plan

						Weighted-
			Weighted-			Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price			Term	Value
Outstanding as of December 31, 2014	307,959		$	34.28
Granted – original	48,451			57.64
Exercised (includes shares tendered)	(85,713	)		30.18
Forfeited or expired	(5,826	)		38.92
Outstanding as of December 31, 2015	264,871		$	39.61		2.33	$	3
Vested or expected to vest as of December 31, 2015 (1)	248,111		$	39.70		2.32	$	3
Exercisable as of December 31, 2015	155,909		$	35.01		1.79	$	2

⁽¹⁾ Includes estimated forfeitures.

Summary of activity for restricted stock units

				Weighted-
				Average
			Grant-Date
	Shares			Fair Value
Outstanding as of December 31, 2014	1,527,675			$	34.30
Granted	481,900				58.08
Vested	(613,391	)			26.33
Forfeited	(96,185	)			43.32
Outstanding as of December 31, 2015	1,299,999			$	46.21