Fair Value Measurements (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 01, 2016	Mar. 31, 2015
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness								$ 8
ERROR in label resolution.
Derivative Instruments, Gain (Loss) [Line Items]
Accrued Investment Income Receivable											$ 7
Available-for-sale Securities							$ 20	0
Foreign Currency Contracts, Liability, Fair Value Disclosure							2,271	1,458
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)							26
Derivative, Gain on Derivative							12
Cost Method Investments							20	45
Time Deposits, at Carrying Value							19	31
Cash							135	170
Gain (loss) related to ineffective portion of hedging relationships								0
Impairment of Intangible Assets (Excluding Goodwill)	$ 9		$ 18	$ 12			11	19	$ 195
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net								213	105
Unrealized gain on derivative financial instruments							102	145
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months							63
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net							1,830	2,090
Notional Amount of Interest Rate Derivatives		$ 450									450
Gain (loss) recognized in earnings for terminated interest rate swaps		$ 11
Interest Rate Derivatives, at Fair Value, Net											$ 35
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net							1	2	1
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net							0	11	0
Unamortized gains on senior notes							51	63
Unrealized gain on interest rate cash flow hedges, pretax, AOCI							9	10
Gain (loss) recognized in earnings for previously terminated interest rate swaps							13	13	9
Gain (loss) on previously terminated interest rate swaps to be reclassified within twelve months							13
Asset Impairment Charges					$ 110	$ 55
Debt Instrument, Fair Value Disclosure							5,739	5,887
Common Stock, Value per share, Subscriptions										$ 0.60
Common Stock, Value, Subscriptions										$ 7
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | ERROR in label resolution. | Cost of products sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net							133	213	105
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net							65	98	227
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							134	215	106
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net							65	109	227
Not Designated as Hedging Instrument [Member] | Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) from foreign currency transaction exposures							7	(69)	(70)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net							(20)	48	52
Foreign Currency Transaction Gain (Loss), Realized							(13)	(21)	$ (18)
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
Available-for-sale Securities							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							42	118
Foreign Currency Contract, Asset, Fair Value Disclosure							199	237
Assets, Fair Value Disclosure							261	355
Foreign Currency Contracts, Liability, Fair Value Disclosure							26	23
Accrued Contingent Consideration							204	246
Liabilities, Fair Value Disclosure							230	269
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							42	118
Foreign Currency Contract, Asset, Fair Value Disclosure							0	0
Assets, Fair Value Disclosure							62	118
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							199	237
Assets, Fair Value Disclosure							199	237
Foreign Currency Contracts, Liability, Fair Value Disclosure							26	23
Accrued Contingent Consideration							0	0
Liabilities, Fair Value Disclosure							26	23
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
Available-for-sale Securities							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							204	246
Liabilities, Fair Value Disclosure							$ 204	246
(Gain) Loss on hedged debt obligation [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense, Other								$ (8)