EMPLOYEE STOCK BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2015

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

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Other information related to stock-based compensation benefits are as follows:

	Years Ended December 31,
Dollars in Millions	2015		2014		2013
Stock options	$	—	$	—	$	2
Restricted stock units	82		75		74
Market share units	36		34		29
Performance share units	117		104		86
Total stock-based compensation expense	$	235	$	213	$	191
Income tax benefit	$	77	$	71	$	64

Schedule of Share-based Compensation, Activity [Table Text Block]

	Stock Options				Restricted Stock Units				Market Share Units				Performance Share Units
	Number of Options Outstanding		Weighted- Average Exercise Price of Shares		Number of Nonvested Awards		Weighted- Average Grant-Date Fair Value		Number of Nonvested Awards		Weighted- Average Grant-Date Fair Value		Number of Nonvested Awards		Weighted- Average Grant-Date Fair Value
Shares in Thousands
Balance at January 1, 2015	15,577		$	22.29	5,247		$	43.61	1,961		$	42.47	3,419		$	47.12
Granted	—		—		1,770		61.18		703		67.03		1,574		65.07
Released/Exercised	(5,084	)	23.56		(2,132	)	44.06		(1,323	)	35.32		(1,771	)	42.15
Adjustments for actual payout	—		—		—		—		614		32.69		1,307		51.29
Forfeited/Canceled	(166	)	25.16		(386	)	46.98		(146	)	52.66		(451	)	59.51
Balance at December 31, 2015	10,327		21.62		4,499		50.02		1,809		53.10		4,078		56.17
Vested or expected to vest	10,327		21.62		4,061		49.52		1,674		52.58		4,627		57.49

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

	Restricted		Market		Performance
Dollars in Millions	Stock Units		Share Units		Share Units
Unrecognized compensation cost	$	159	$	40	$	106
Expected weighted-average period in years of compensation cost to be recognized	2.7		2.8		1.7

Schedule Of Share Based Compensation Additional Information [Table Text Block]

Amounts in Millions, except per share data	2015		2014		2013
Weighted-average grant date fair value (per share):
Restricted stock units	$	61.18	$	52.22	$	38.73
Market share units	67.03		55.44		37.40
Performance share units	65.07		55.17		37.40
Fair value of options or awards that vested during the year:
Stock options	$	—	$	—	$	11
Restricted stock units	77		68		74
Market share units	47		49		30
Performance share units	75		90		90
Total intrinsic value of stock options exercised during the year	$	206	$	199	$	323

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

The following table summarizes significant ranges of outstanding and exercisable options at December 31, 2015:

	Options Outstanding and Exercisable
Range of Exercise Prices	Number Outstanding and Exercisable (in thousands)	Weighted-Average Remaining Contractual Life (in years)	Weighted-Average Exercise Price  Per Share		Aggregate Intrinsic Value (in millions)
$1 - $20	4,096	3.14	$	17.53	$	210
$20 - $30	6,231	1.49	24.30		277
	10,327	2.14	$	21.61	$	487