FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Financial assets and liabilities measured at fair value on a recurring basis are summarized below:

	December 31, 2017					December 31, 2016
Dollars in Millions	Level 1		Level 2			Level 1		Level 2
Cash and cash equivalents - Money market and other securities	$	—	$	4,728		$	—	$	3,532
Marketable securities:
Certificates of deposit	—		141			—		27
Commercial paper	—		50			—		750
Corporate debt securities	—		3,548			—		3,947
Equity funds	—		124			—		101
Fixed income funds	—		8			—		7
Derivative assets	—		13			—		75
Equity investments	67		—			24		—
Derivative liabilities	—		(52		)	—		(30		)

Available-for-sale Securities [Table Text Block]

The following table summarizes available-for-sale securities:

	December 31, 2017									December 31, 2016
Dollars in Millions	Amortized Cost		Gross Unrealized					Fair Value		Amortized Cost		Gross Unrealized					Fair Value
			Gains		Losses							Gains		Losses
Certificates of deposit	$	141	$	—	$	—		$	141	$	27	$	—	$	—		$	27
Commercial paper	50		—		—			50		750		—		—			750
Corporate debt securities	3,555		3		(10		)	3,548		3,945		10		(8		)	3,947
Equity investments	31		37		(1		)	67		31		—		(7		)	24
	$	3,777	$	40	$	(11	)	$	3,806	$	4,753	$	10	$	(15	)	$	4,748
Financial assets measured using the fair value option
Equity and fixed income funds(a)								132									108
Total								$	3,938								$	4,856

Dollars in Millions	December 31, 2017		December 31, 2016
Current marketable securities	$	1,391	$	2,113
Non-current marketable securities(b)	2,480		2,719
Other assets(c)	67		24
Total	$	3,938	$	4,856

(a) The fair value option for financial assets was elected for investments in equity and fixed income funds and are included in current marketable securities. Changes in fair value were not significant.

(b) All non-current marketable securities mature within five years as of December 31, 2017 and 2016.

(c) Includes equity investments.

Schedule of Derivatives and Fair Value [Table Text Block]

The following summarizes the fair value of outstanding derivatives:

	December 31, 2017									December 31, 2016
	Asset(a)				Liability(b)					Asset(a)				Liability(b)
Dollars in Millions	Notional		Fair Value		Notional		Fair Value			Notional		Fair Value		Notional		Fair Value
Derivatives designated as hedging instruments:
Interest rate swap contracts	$	—	$	—	$	755	$	(6	)	$	750	$	1	$	755	$	(3	)
Forward starting interest rate swap contracts	—		—		—		—			500		8		250		(11		)
Foreign currency forward contracts	944		12		489		(9		)	967		66		198		(9		)
Derivatives not designated as hedging instruments:
Foreign currency forward contracts	206		1		1,369		(37		)	106		—		360		(7		)

(a) Included in prepaid expenses and other and other assets.

(b) Included in accrued liabilities and pension and other liabilities.

Schedule of Short-term Debt [Table Text Block]

Short-term debt obligations include:

	December 31,
Dollars in Millions	2017		2016
Commercial paper	$	299	$	—
Non-U.S. short-term borrowings	512		109
Other	176		134
Current portion of long-term debt	—		749
Total	$	987	$	992

Schedule of Long-term Debt Instruments [Table Text Block]

Long-term debt and the current portion of long-term debt includes:

	December 31,
Dollars in Millions	2017			2016
Principal Value:
0.875% Notes due 2017	$	—		$	750
1.750% Notes due 2019	500			500
1.600% Notes due 2019	750			—
2.000% Notes due 2022	750			750
7.150% Notes due 2023	302			302
3.250% Notes due 2023	500			500
1.000% Euro Notes due 2025	682			601
6.800% Notes due 2026	256			256
3.250% Notes due 2027	750			—
1.750% Euro Notes due 2035	682			601
5.875% Notes due 2036	287			404
6.125% Notes due 2038	230			278
3.250% Notes due 2042	500			500
4.500% Notes due 2044	500			500
6.875% Notes due 2097	87			260
0% - 5.75% Other - maturing 2018 - 2024	59			59
Subtotal	6,835			6,261
Adjustments to Principal Value:
Fair value of interest rate swap contracts	(6		)	(2		)
Unamortized basis adjustment from swap terminations	227			287
Unamortized bond discounts and issuance costs	(81		)	(81		)
Total	$	6,975		$	6,465
Current portion of long-term debt	$	—		$	749
Long-term debt	6,975			5,716

Schedule of Note Issuances [Table Text Block]

The following table summarizes the issuance of long-term debt obligations in 2017 and 2015 (none in 2016):

	2017			2015
Amounts in Millions	U.S. dollars			Euro			U.S. dollars
Principal Value:
1.600% Notes due 2019	$	750		€	—		$	—
1.000% Euro Notes due 2025	—			575			643
3.250% Notes due 2027	750			—			—
1.750% Euro Notes due 2035	—			575			643
Total	$	1,500		€	1,150		$	1,286
Proceeds net of discount and deferred loan issuance costs	$	1,488		€	1,133		$	1,268
Forward starting interest rate swap contracts terminated:
Notional amount	$	750		€	500		$	559
Realized gain	6			—			—
Unrealized loss	(2		)	(16		)	(18		)

Schedule of Debt Repurchases [Table Text Block]

The following summarizes the debt redemption activity for 2017 and 2015 (none in 2016):

Dollars in Millions	2017		2015
Principal amount	$	337	$	1,624
Carrying value	366		1,795
Debt redemption price	474		1,957
Notional amount of interest rate swap contracts terminated	—		735
Interest rate swap termination payments	—		11
Loss on debt redemption(a)	109		180

(a) Including acceleration of debt issuance costs, loss on interest rate lock contract and other related fees.