Repositioning and Other Charges (Details 3) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011
Restructuring Reserve [Line Items]
Balance at beginning of period	$ 310
Charges for the period	370
Usage for the period (cash - Severance & Exit Costs)	(112)
Usage for the period (non-Cash - Asset Impairment)	(86)
Foreign currency translation	0
Adjustments	(21)
Balance at end of period	461
Severance Costs [Member]
Restructuring Reserve [Line Items]
Balance at beginning of period	276
Charges for the period	237
Usage for the period (cash - Severance & Exit Costs)	(95)
Foreign currency translation	0
Adjustments	(21)
Balance at end of period	397
Asset Impairments [Member]
Restructuring Reserve [Line Items]
Charges for the period	86
Usage for the period (non-Cash - Asset Impairment)	(86)
Exit Costs [Member]
Restructuring Reserve [Line Items]
Balance at beginning of period	34
Charges for the period	47
Usage for the period (cash - Severance & Exit Costs)	(17)
Balance at end of period	$ 64