Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Tables)

12 Months Ended

Dec. 31, 2016

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans [Abstract]

Stock-Based Compensation Expense and Related Income Tax Benefit

Year Ended December 31,		2016		2015		2014
Stock option expense	$	45	$	46	$	44
Restricted stock unit expense		89		83		66
Employee stock purchase plan expense		7		6		5
Total share-based compensation expense	$	141	$	135	$	115
Income tax benefit on share-based compensation expense	$	(53)	$	(51)	$	(43)

Stock Option Activity

						Weighted-
			Weighted-			Average
	Number		Average			Remaining		Aggregate
	of Options		Exercise Price			Contractual		Intrinsic
	(In millions)		per Share			Life (in years)		Value
Outstanding at December 31, 2015		40		$	19.82
Granted		6			30.05
Exercised		(9)			16.77
Forfeited		-			26.59
Expired		-			22.57
Outstanding at December 31, 2016		37		$	22.12		6.50	$	649
Vested and expected to vest at December 31, 2016		37		$	22.03		6.47	$	646
Vested and exercisable at December 31, 2016		23		$	17.94		5.21	$	505

Information on Stock Options Granted and Exercised

Year Ended December 31,		2016		2015		2014
Weighted-average fair value of options granted per share	$	8.73	$	8.56	$	7.82
Cash received from options exercised		144		90		189
Tax benefit realized on options exercised		38		22		8
Aggregate intrinsic value of options exercised		149		90		86

Assumptions Used to Value Options Granted and Their Expected Lives

Year Ended December 31,	2016		2015		2014
Weighted-average expected dividend yield	1.22	%	1.22	%	1.20	%
Weighted-average expected volatility	30	%	28	%	28	%
Weighted-average risk-free interest rate	1.8	%	2.2	%	2.4	%
Expected life (in years)	4.7-7.3		4.7 - 7.5		4.4 - 7.2

Restricted Stock Units Activity

		Weighted-
	Number	Average Grant
	of Units	Date Fair Value
	(In millions)	per Unit
Outstanding at December 31, 2015	8	$	25.84
Granted	3		30.64
Vested	(3)		22.53
Forfeited	-		25.80
Outstanding at December 31, 2016	8	$	29.41

Schedule of Changes in Projected Benefit Obligations

December 31,		2016		2015
Projected benefit obligation at beginning of year	$	17	$	8
Service and interest cost		7		8
Actuarial (gain)/loss		2		1
Projected benefit obligation at end of year (1)	$	26	$	17

(1) This amount is recognized as a liability on the consolidated balance sheets and also depicts the accumulated benefit obligation.

Schedule of Net Benefit Costs and Assumptions Used

December 31,		2016			2015			2014
Service and interest cost	$	7		$	8		$	6
Net benefit cost	$	7		$	8		$	6
Assumptions used to determine net benefit cost:
Discount rate		4.62	%		4.19	%		5.30	%
Rate of compensation increase		3.00	%		3.00	%		3.00	%
Investment crediting rate for notional account balances		6.50	%		6.50	%		6.50	%

Schedule of Components and Amounts Impacting AOCI

December 31,		2016		2015
Net (gain)/loss	$	1	$	-
Amount recognized in AOCI	$	1	$	-