Other Income, Net (Schedule of Other Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Component of Other Income [Line Items]
Net exchange losses	$ (101)		$ (130)		$ (55)		$ (161)
Total	70		(54)		321		251
Other Income [Member]
Component of Other Income [Line Items]
Cozaar/Hyzaar income	0		9		14		48
Royalty income	35		21		122		84
Interest income	34		27		106		87
Equity in earnings of affiliates, excluding exchange gains / losses	28		11		14		42
Gain on sale of equity method investment	0		0		9		122
Net gain on sales of other assets	7		1		17		11
Net exchange losses	(101)	[1]	(130)	[1]	(55)	[1]	(161)	[1]
Miscellaneous income and expenses, net	67	[2]	7	[2]	94	[2]	18	[2]
Total	70		(54)		321		251
ForeignCurrencyLossDuetoDevaluation [Member]
Component of Other Income [Line Items]
Net exchange losses					$ (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 $(55) net exchange loss 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, generally includes interest items, certain insurance recoveries and litigation settlements, and other items.