Common Stock And Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Compensation Expense For Share-Based Incentive Awards

(in millions)	2016		2015		2014
Restricted stock units	$	53	$	47	$	42
Performance shares		55		46		36
Total compensation expense (pre-tax)	$	108	$	93	$	78
Total compensation expense (after-tax)	$	64	$	55	$	47

Schedule Of Restricted Stock Units

The following table summarizes restricted stock unit activity for 2016:

	Number of	Weighted Average Grant-
	Restricted Stock Units	Date Fair Value
Nonvested at January 1	1,972,899	$	47.33
Granted	776,312	$	56.68
Vested	(770,968)	$	46.79
Forfeited	(55,233)	$	49.65
Nonvested at December 31	1,923,010	$	51.26

Schedule Of Performance Shares

The following table summarizes activity for performance shares in 2016:

	Number of	Weighted Average Grant-
	Performance Shares	Date Fair Value
Nonvested at January 1	1,450,612	$	59.24
Granted	1,233,884		53.61
Vested	(777,719)		51.81
Forfeited (1)	(67,922)		58.20
Nonvested at December 31	1,838,855	$	58.65
(1)Includes performance shares that expired with zero value as performance targets were not met.