Share-Based Compensation And Other Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of share-based plans expense and related income tax benefit

The share-based plans expense and related income tax benefit were as follows:

Years ended December 31,	2017		2016		2015
Stock options				$4		$30
Restricted stock units and other awards	212		189		160
Share-based plans expense		$212		$193		$190
Income tax benefit		$46		$69		$68

Schedule of Stock Options Activity

Stock option activity for the year ended December 31, 2017 is as follows:

	Shares	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Number of shares under option:
Outstanding at beginning of year	8,646,612		$72.64
Exercised	(4,224,194)	73.61
Expired	(5,200)	89.65
Outstanding at end of year	4,417,218		$71.69	3.93		$986
Exercisable at end of year	4,417,218		$71.69	3.93		$986

Schedule of Restricted Stock Units Award Activity

RSU activity for the year ended December 31, 2017 was as follows:

	Long-Term Incentive Program			Other
Number of units:
Outstanding at beginning of year	1,814,644			1,077,920
Granted	570,538			390,152
Dividends	45,799			30,477
Forfeited	(142,907		)	(40,670		)
Distributed	(660,972		)	(301,417		)
Outstanding at end of year	1,627,102			1,156,462
Unrecognized compensation cost		$98			$82
Weighted average remaining contractual life (years)	1.8			3.4

Schedule of Performance Based Restricted Stock Units Award Grant Fair Values

The grant date fair values were estimated using a Monte-Carlo simulation model with the assumptions presented below. The model includes no expected dividend yield as the units earn dividend equivalents.

Grant Year	Grant Date	Performance Period	Expected Volatility		Risk Free Interest Rate		Grant Date Fair Value
2017	2/27/2017	3 years	21.37	%	1.46	%	190.17
2016	2/22/2016	3 years	22.44	%	0.92	%	126.74
2015	2/23/2015	3 years	20.35	%	1.03	%	164.26

Schedule of Performance Based Restricted Stock Units Award Activity

PBRSU activity for the year ended December 31, 2017 was as follows:

	Long-Term Incentive Program
Number of units:
Outstanding at beginning of year	1,746,511
Granted	492,273
Performance based adjustment (1)	137,363
Dividends	54,683
Forfeited	(130,367		)
Distributed	(748,729		)
Outstanding at end of year	1,551,734
Unrecognized compensation cost		$90
Weighted average remaining contractual life (years)	1.8