Other Income, Net (Schedule of Other Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Other Income and Expenses [Abstract]
Cozaar/Hyzaar income	$ 25		$ 48
Royalty income	41		31
Interest income	23		28
Equity in earnings (losses) of affiliates, Excluding Exchange Gains Losses	10		48
Net (losses) gains on sales of assets	5		6
Net exchange gains (losses)	(80)	[1]	(143)	[1]
Miscellaneous income and expenses, net	2	[2]	7	[2]
Total	$ 26		$ 25

[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 and losses are recorded in other income, net and the related tax impact is recorded in provision for income taxes on the interim Consolidated Income Statements.

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