Other Income, Net (Schedule of Other Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Component of Other Income, Nonoperating [Line Items]
Net exchange gains (losses)	$ 35		$ 50		$ 46		$ (31)
Total	159		291		251		305
Other Income [Member]
Component of Other Income, Nonoperating [Line Items]
Cozaar/Hyzaar income	12		14		14		39
Royalty income	50		22		87		62
Interest income	45		37		72		60
Equity in (loss) earnings affiliates, excluding exchange gains / losses	(7)		21		(14)		31
Gain on sale of equity method investment	9		122		9		122
Net gain on sales of other assets	5		5		10		10
Net exchange gains (losses)	35	[1]	50	[1]	46	[1]	(31)	[1]
Miscellaneous income and expenses, net	10	[2]	20	[2]	27	[2]	12	[2]
Total	159		291		251		305
ForeignCurrencyLossDuetoDevaluation [Member]
Component of Other Income, Nonoperating [Line Items]
Net exchange gains (losses)	$ 3				$ (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 income taxes on continuing operations on the interim Consolidated Income Statements. The $35 and $46 net exchange gain for the three and six months ended June 30, 2013, includes a $3 exchange gain and a $(33) exchange (loss), respectively, associated with the devaluation of the Venezuelan bolivar.

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