Stock-Based Incentive Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2016

Stock-Based Incentive Compensation Plans [Abstract]

Total compensation expense for all stock-based incentive compensation plans

	For the Years Ended December 31,
	2016		2015		2014
Stock options	$	9	$	7	$	9
Performance shares		11		12		12
SARs		3		-		2
RSUs		23		22		15
Total	$	46	$	41	$	38
Recognized tax benefit	$	16	$	14	$	13

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

	For the Years Ended December 31,
	2016			2015			2014
			Weighted-			Weighted-			Weighted-
			Average			Average			Average
	Expense		Period	Expense		Period	Expense		Period
Stock options	$	8	1.4	$	8	1.4	$	8	1.5
Performance shares		12	1.4		11	1.0		9	1.5
SARs		2	3.6		1	3.0		3	3.2
RSUs		25	1.2		24	1.0		21	1.0
Total unrecognized stock-based
incentive compensation expense	$	47		$	44		$	41

Option price assumptions used for stock option incentive plans

	For the Years Ended December 31,
	2016		2015		2014
Weighted-average fair value per option granted	$	9.32	$	13.00	$	12.95
Assumptions:
Dividend yield		2.8%		1.9%		2.2%
Expected volatility		35.9%		28.0%		33.2%
Risk-free interest rate		1.0-1.6%		1.4-1.7%		0.9-1.8%
Expected life (in years)		5.7		5.5		5.4

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, 2015	1,008,080		$	50.05
Granted – original	92,310			40.07
Exercised (includes shares tendered)	(297,858	)		47.66
Forfeited or expired	(22,716	)		48.17
Outstanding as of December 31, 2016	779,816		$	49.83		1.72	$	13
Vested or expected to vest as of December 31, 2016 (1)	734,680		$	49.85		1.61	$	12
Exercisable as of December 31, 2016	689,544		$	49.87		1.50	$	11

⁽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, 2015	3,024,348		$	41.23
Granted – original	776,895			35.51
Exercised (includes shares tendered)	(826,542	)		30.00
Forfeited or expired	(261,643	)		52.03
Outstanding as of December 31, 2016	2,713,058		$	41.97		6.53	$	67
Vested or expected to vest as of December 31, 2016 (1)	2,482,191		$	41.69		6.35	$	62
Exercisable as of December 31, 2016	1,562,171		$	41.40		4.93	$	40

⁽¹⁾ Includes estimated forfeitures.

Summary of activity for performance shares

				Weighted-
				Average
			Grant-Date
	Shares			Fair Value
Nonvested as of December 31, 2015	537,887			$	49.52
Granted	291,298				38.59
Vested	(227,367	)			33.60
Forfeited	(23,883	)			50.80
Nonvested as of December 31, 2016	577,935			$	50.23

Option price assumptions used for stock appreciation rights plan

	For the Years Ended December 31,
	2016		2015		2014
Weighted-average fair value per SAR granted	$	10.25	$	14.22	$	13.64
Assumptions:
Dividend yield		2.9%		1.6%		1.5%
Expected volatility		35.8%		29.8%		32.7%
Risk-free interest rate		1.4%		1.8%		1.7%
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, 2015	264,871		$	39.61
Granted – original	63,807			40.06
Exercised (includes shares tendered)	(87,147	)		31.36
Forfeited or expired	(4,259	)		49.01
Outstanding as of December 31, 2016	237,272		$	42.59		2.48	$	6
Vested or expected to vest as of December 31, 2016 (1)	226,463		$	42.66		2.45	$	5
Exercisable as of December 31, 2016	138,343		$	40.42		1.81	$	4

⁽¹⁾ Includes estimated forfeitures.

Summary of activity for restricted stock units

				Weighted-
				Average
			Grant-Date
	Shares			Fair Value
Outstanding as of December 31, 2015	1,299,999			$	46.21
Granted	767,733				35.72
Vested	(481,760	)			31.37
Forfeited	(77,605	)			46.17
Outstanding as of December 31, 2016	1,508,367			$	45.61