Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure						$ 2,178	$ 2,564
Accrued Contingent Consideration						(274)	(501)	(663)
Derivative Instruments, Gain (Loss) [Line Items]
Cost Method Investments						27	20
Time Deposits, at Carrying Value						255	31
Cash						181	148
Gain (loss) related to ineffective portion of hedging relationships						(1)	1
Impairment of Intangible Assets (Excluding Goodwill)	12			13	129	195	53	142
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net						105	36	(39)
Unrealized gain on derivative financial instruments						217	139
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months						128
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net						2,470	1,952
Notional Amount of Interest Rate Derivatives							450
Interest Rate Derivatives, at Fair Value, Net						450
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net						1	1	2
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net						0	0	0
Unamortized gains on senior notes						45	54
Unamortized losses on senior notes						2	2
Unrealized gain on interest rate cash flow hedges, pretax, AOCI						2	3
Gain (loss) recognized in earnings for previously terminated interest rate swaps						9	10	11
Gain (loss) on previously terminated interest rate swaps to be reclassified within twelve months						9
Asset Impairment Charges		110	55			195	476
Debt Instrument, Fair Value Disclosure						4,613	4,602
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net						106	37	(37)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net						227	207	95
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cost of products sold [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net						105	36	(39)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net						227	207	95
Not Designated as Hedging Instrument [Member] | Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) from foreign currency transaction exposures						(70)	(56)	(41)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net						52	45	23
Foreign Currency Transaction Gain (Loss), Realized						(18)	(11)	(18)
(Gain) Loss on hedged debt obligation [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense, Other						(29)	7
Loss on hedged debt obligation [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense, Other						29	(8)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value						0	0
Derivative Instruments in Hedges, Liabilities, at Fair Value						0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value						0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value						0	0
Derivative Instruments in Hedges, Liabilities, at Fair Value						0	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value						151	38
Foreign Currency Contract, Asset, Fair Value Disclosure						419	264
Derivative Instruments in Hedges, Assets, at Fair Value						25	1
Assets, Fair Value Disclosure						595	303
Foreign Currency Contracts, Liability, Fair Value Disclosure						36	55
Accrued Contingent Consideration						274	501
Derivative Instruments in Hedges, Liabilities, at Fair Value						0	8
Liabilities, Fair Value Disclosure						310	564
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value						151	38
Foreign Currency Contract, Asset, Fair Value Disclosure						0	0
Assets, Fair Value Disclosure						151	38
Foreign Currency Contracts, Liability, Fair Value Disclosure						0	0
Accrued Contingent Consideration						0	0
Liabilities, Fair Value Disclosure						0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value							0
Foreign Currency Contract, Asset, Fair Value Disclosure						419	264
Derivative Instruments in Hedges, Assets, at Fair Value						25	1
Assets, Fair Value Disclosure						444	265
Foreign Currency Contracts, Liability, Fair Value Disclosure						36	55
Accrued Contingent Consideration						0	0
Derivative Instruments in Hedges, Liabilities, at Fair Value						0	8
Liabilities, Fair Value Disclosure						36	63
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value						0	0
Foreign Currency Contract, Asset, Fair Value Disclosure						0	0
Assets, Fair Value Disclosure						0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure						0	0
Accrued Contingent Consideration						274	501
Liabilities, Fair Value Disclosure						$ 274	$ 501