Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty and Recall

The following table summarizes the changes in total product warranty and recall reserves for the periods presented:

Millions of dollars	2012			2011
Balance at January 1	$	191		$	217
Issuances/accruals during the period	233			248
Settlements made during the period	(241		)	(256		)
Other changes	—			(21		)
Balance at September 30	$	183		$	188
Current portion	$	150		$	148
Non-current portion	33			40
Total	$	183		$	188