Fair Value Measurements Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2013
ERROR in label resolution.
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount							$ 450
ERROR in label resolution. | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (99)	$ (25)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	32	53
ERROR in label resolution. | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Cost of products sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net				$ (158)	$ 68
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net				80	102
ERROR in label resolution.
Derivative Instruments, Gain (Loss) [Line Items]
Accrued Investment Income Receivable			$ 7
Derivative, Notional Amount	2,476			2,476		$ 1,458
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	32	53		80	102
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	49			49
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax, Ending Balance	(7)			(7)		145
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	2,389			2,389		2,090
Gain (Loss) on Interest Rate Fair Value Hedge Ineffectiveness					8
Gain (loss) recognized in earnings for terminated interest rate swaps			$ 35
Unamortized gains on senior notes	57			57		63
Unrealized gain on interest rate cash flow hedges, pretax, AOCI	9			9		10
reduction of interest expense, related to amortization of previously terminated interest rate contracts	3	5		6	7
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	13			13
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		10			11
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		1			2
Derivative Assets	144			144		237
Derivative Liabilities	199			199		23
Time Deposits, at Carrying Value	60			60		31
Cash	301			301		170
Cost-method Investments, Aggregate Carrying Amount	25			25		45
Debt Instrument, Fair Value Disclosure	5,878			5,878		5,887
Loss on hedged debt obligation [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense, Other					(8)
Fair Value, Measurements, Recurring [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Money Market Funds, at Carrying Value	77			77		118
Foreign Currency Contract, Asset, Fair Value Disclosure	144			144		237
Assets, Fair Value Disclosure	221			221		355
Foreign Currency Contracts, Liability, Fair Value Disclosure	199			199		23
Accrued Contingent Consideration	207			207		246
Liabilities, Fair Value Disclosure	406			406		269
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Money Market Funds, at Carrying Value	77			77		118
Foreign Currency Contract, Asset, Fair Value Disclosure	0			0		0
Assets, Fair Value Disclosure	77			77		118
Foreign Currency Contracts, Liability, Fair Value Disclosure	0			0		0
Accrued Contingent Consideration	0			0		0
Liabilities, Fair Value Disclosure	0			0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Money Market Funds, at Carrying Value	0			0		0
Foreign Currency Contract, Asset, Fair Value Disclosure	144			144		237
Assets, Fair Value Disclosure	144			144		237
Foreign Currency Contracts, Liability, Fair Value Disclosure	199			199		23
Accrued Contingent Consideration	0			0		0
Liabilities, Fair Value Disclosure	199			199		23
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Money Market Funds, at Carrying Value	0			0		0
Foreign Currency Contract, Asset, Fair Value Disclosure	0			0		0
Assets, Fair Value Disclosure	0			0		0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0			0		0
Accrued Contingent Consideration	207			207		246
Liabilities, Fair Value Disclosure	207			207		246
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	101			101		204
Derivative Instruments in Hedges, Liabilities, at Fair Value	120			120		1
Designated as Hedging Instrument [Member] | Prepaid And Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	88			88		138
Designated as Hedging Instrument [Member] | Other Long Term Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	13			13		66
Designated as Hedging Instrument [Member] | Other current liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments in Hedges, Liabilities, at Fair Value	21			21		1
Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments in Hedges, Liabilities, at Fair Value	99			99		0
Not Designated as Hedging Instrument [Member] | Prepaid And Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	43			43		33
Not Designated as Hedging Instrument [Member] | Other current liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	79			79		$ 22
Not Designated as Hedging Instrument [Member] | Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(28)	(9)		(67)	14
Net gain (loss) from foreign currency transaction exposures	29	4		63	(28)
Foreign Currency Transaction Gain (Loss), Realized	1	(5)		(4)	(14)
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(99)	(15)		(158)	79
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 32	$ 54		$ 80	$ 104