Other Income, Net (Schedule of Other Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Component of Other Income [Line Items]
Net exchange gains (losses)	$ 218		$ (101)		$ 13		$ (55)
Total	357		70		782		321
Exchange gains (losses) related to earnings of affiliates	3		(1)		1		4
Other Income [Member]
Component of Other Income [Line Items]
Royalty income	48		35		120		122
Interest income	33		34		104		106
Equity in earnings of affiliates, excluding exchange gains / losses	6	[1]	28	[1]	28	[1]	14	[1]
Gain on sale of equity method investment	0		0		0		9
Net gain on sales of businesses and other assets	29		7		440		17
Net exchange gains (losses)	218	[1]	(101)	[1]	13	[1]	(55)	[1]
Cozaar/Hyzaar income	0		0		1		14
Miscellaneous income and expenses, net	23	[2]	67	[2]	76	[2]	94	[2]
Total	357		70		782		321
Foreign currency loss due to devaluation of Ukrainian hryvnia [Member]
Component of Other Income [Line Items]
Net exchange gains (losses)					(46)
Foreign currency loss due to devaluation of Argentinian peso [Member]
Component of Other Income [Line Items]
Net exchange gains (losses)					(14)
Foreign currency loss due to devaluation of Venezuelan Bolivar [Member]
Component of Other Income [Line Items]
Net exchange gains (losses)					$ (58)		$ (33)

[1] The company routinely uses foreign currency exchange contracts to offset its net exposures, by currency, related to the foreign currency-denominated monetary assets and liabilities. The objective of this program is to maintain an approximately balanced position in foreign currencies in order to minimize, on an after-tax basis, the effects of exchange rate changes on net monetary asset positions. The net pre-tax exchange gains (losses) are recorded in other income, net and the related tax impact is recorded in provision for (benefit from) income taxes on continuing operations on the company's interim Consolidated Income Statements. Exchange gains (losses) related to earnings of affiliates was $3 and $1 for the three and nine months ended September 30, 2014, respectively. Exchange gains (losses) related to earnings of affiliates was $(1) and $4 for the three and nine months ended September 30, 2013, respectively. The $13 net exchange gain for the nine months ended September 30, 2014, includes $(58), $(46) and $(14) exchange losses, associated with the devaluation of the Venezuelan bolivar, Ukrainian hryvnia, and Argentinian peso, respectively. The $(55) net exchange losses for the nine months ended September 30, 2013, includes a $(33) exchange loss associated with the devaluation of the Venezuelan bolivar.

[2] Miscellaneous income and expenses, net, includes interest items, certain insurance recoveries and litigation settlements, and other items.