Segment Information (Schedule of Reconciliation of PTOI) (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Segment Information
Total segment PTOI	$ 1,943	[1]	$ 1,655	[1]	$ 4,068	[1]	$ 3,458	[1]
Net exchange gains (losses), including affiliates	4	[1],[2]	105	[1],[2]	(139)	[1],[2]	135	[1],[2]
Corporate expenses and net interest	(358)	[1]	(192)	[1]	(638)	[1]	(438)	[1]
Income before income taxes	$ 1,589	[1]	$ 1,568	[1]	$ 3,291	[1]	$ 3,155	[1]

[1] A reconciliation of total segment PTOI to income before income taxes is as follows:  Three Months EndedJune 30, Six Months EndedJune 30, 2011 2010 2011 2010Total segment PTOI$1,943 $1,655 $4,068 $3,458Net exchange gains (losses), including affiliates4 105 (139) 135Corporate expenses and net interest(358) (192) (638) (438)Income before income taxes$1,589 $1,568 $3,291 $3,155

[2] The company routinely uses forward exchange contracts to offset its net exposures, by currency, related to its 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 partially offset by the associated tax impact.