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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Product Warranty and Recall Reserves
The following table summarizes the changes in total product warranty reserves for the periods presented:
Millions of dollars
 
2014
 
2013
Balance at January 1
 
$
191

 
$
187

Issuances/accruals during the period(1)
 
316

 
292

Settlements made during the period
 
(272
)
 
(288
)
Balance at December 31
 
$
235

 
$
191

Current portion
 
$
186

 
$
154

Non-current portion
 
49

 
37

Total
 
$
235

 
$
191


(1) $61 million is included within issuances/accruals during 2014 related to acquisitions
Operating Lease Commitments
At December 31, 2014, we had noncancelable operating lease commitments totaling $868 million. The annual future minimum lease payments are summarized by year in the table below:
Millions of dollars
 
 
2015
 
$
230

2016
 
183

2017
 
150

2018
 
109

2019
 
82

Thereafter
 
114

Total noncancelable operating lease commitments
 
$
868

Purchase Obligations
Our expected cash outflows resulting from non-cancellable purchase obligations are summarized by year in the table below:
Millions of dollars
 
 
2015
 
$
209

2016
 
196

2017
 
147

2018
 
113

2019
 
65

Thereafter
 
211

Total purchase obligations
 
$
941