FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Debt Obligations) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013
Extinguishment of Debt Disclosures [Abstract]
Extinguishment of Debt, Principal Value	$ 582,000,000		$ 2,052,000,000
Extinguishment of Debt, Carrying Value	633,000,000		2,081,000,000
Extinguishment of Debt, Repurchase Price	676,000,000		2,108,000,000
Extinguishment of Debt, Notional amount of interest rate swaps terminated	500,000,000		6,000,000
Extinguishment of Debt, Swap Termination Proceeds/(Payments)	(4,000,000)		2,000,000
Extinguishment Of Debt, Total loss	45,000,000		27,000,000
Line of Credit Facility [Line Items]
Number of Revolving Credit Facilities	2
Debt Instrument [Line Items]
Short-term borrowings	590,000,000	359,000,000
Principal value	6,804,000,000	7,593,000,000
Adjustments to Principal Value, Fair value of interest rate swaps	43,000,000	37,000,000
Adjustments to Principal Value, Unamortized basis adjustment from swap terminations	454,000,000	442,000,000
Adjustments to Principal Value, Unamortized bond discounts	(59,000,000)	(64,000,000)
Long-term debt Total	7,242,000,000	8,008,000,000
Current portion of long-term debt		27,000,000
Long-term debt	7,242,000,000	7,981,000,000
Long-term debt, Fair value	8,045,000,000	8,487,000,000
Unsecured Debt		1,500,000,000	2,000,000,000
Total				7,267,000,000	7,372,000,000	7,367,000,000	6,562,000,000	7,122,000,000	7,180,000,000
Repayments of long-term debt	676,000,000	597,000,000	2,108,000,000
Interest payments	238,000,000	268,000,000	241,000,000
Financial guarantees in the form of stand-by letters of credit and perfomance bonds	725,000,000
Euro Notes Due 2016 [Member]
Debt Instrument [Line Items]
Principal value	611,000,000	684,000,000
Notes Due 2017 [Member]
Debt Instrument [Line Items]
Principal value	750,000,000	750,000,000
Notes Due 2018 [Member]
Debt Instrument [Line Items]
Principal value		582,000,000
Notes Due 2019 [Member]
Debt Instrument [Line Items]
Principal value	500,000,000	500,000,000
Euro Notes Due 2021 [Member]
Debt Instrument [Line Items]
Principal value	611,000,000	684,000,000
Notes Due 2022 [Member]
Debt Instrument [Line Items]
Principal value	750,000,000	750,000,000
Debentures Due 2023 [Member]
Debt Instrument [Line Items]
Principal value	304,000,000	304,000,000
Notes Due 2023 [Member]
Debt Instrument [Line Items]
Principal value	500,000,000	500,000,000
Debentures Due 2026 [Member]
Debt Instrument [Line Items]
Principal value	330,000,000	330,000,000
Notes Due 2036 [Member]
Debt Instrument [Line Items]
Principal value	625,000,000	625,000,000
Notes Due 2038 [Member]
Debt Instrument [Line Items]
Principal value	480,000,000	480,000,000
Notes Due 2042 [Member]
Debt Instrument [Line Items]
Principal value	500,000,000	500,000,000
Notes Due 2044 [Member]
Debt Instrument [Line Items]
Principal value	500,000,000	500,000,000
Debentures Due 2097 [Member]
Debt Instrument [Line Items]
Principal value	260,000,000	260,000,000
Other Debt Maturing 2016 To 2030 [Member]
Debt Instrument [Line Items]
Principal value	83,000,000	144,000,000
Floating Rate Convertible Senior Debentures Due 2023 [Member]
Debt Instrument [Line Items]
Principal value	18,000,000
Floating Rate Convertible Senior Debentures due 2023, Conversion price	$ 39.58
Floating Rate Convertible Senior Debentures due 2023, Conversion ratio in shares	25.2623
Floating Rate Convertible Senior Debentures due 2023, Principal amount to be converted	1,000
Notes Due 2013 [Member]
Debt Instrument [Line Items]
Repayments of long-term debt		597,000,000
Amylin Acquisition [Member]
Debt Instrument [Line Items]
Principal value			2,000,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500,000,000