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Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2011
Commitments and Contingencies Disclosure [Abstract]  
Guarantee obligations [Table Text Block]
The maximum potential payments under guarantees and the carrying value of recorded liabilities related to guarantees were as follows (in millions):
 
June 30,

2011
 
December 31,

2010
Maximum potential payments
$
481


 
$
500


Carrying value of recorded liabilities related to guarantees
40


 
43


Warranty [Table Text Block]
Included in warranty cost accruals are the costs for basic warranty coverages on products sold. These costs are estimates based primarily on historical warranty claim experience. Warranty accruals accounted for in Accrued liabilities and deferred revenue were as follows (in millions):
 
First Half
 
2011
 
2010
Beginning balance
$
2,646


 
$
3,147


Payments made during the period
(1,020
)
 
(1,116
)
Changes in accrual related to warranties issued during the period
894


 
954


Changes in accrual related to pre-existing warranties
91


 
95


Foreign currency translation and other
63


 
(122
)
Ending balance
$
2,674


 
$
2,958