Commitments and Contingencies (Tables)

6 Months Ended

Jun. 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	137			172
Settlements made during the period	(147		)	(186		)
Other changes	—			(6		)
Balance at June 30	$	181		$	197
Current portion	$	148		$	154
Non-current portion	33			43
Total	$	181		$	197