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Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Product Warranty and Recall Reserves
The following table summarizes the changes in total product warranty and recall reserves for the periods presented:
Millions of dollars

2013

2012
Balance at January 1

$
187


$
191

Issuances/accruals during the period

177


188

Settlements made during the period

(177
)

(195
)
Other changes

(2
)

(3
)
Balance at June 30

$
185


$
181

Current portion

$
143


$
148

Non-current portion

42


33

Total

$
185


$
181