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Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Product Warranty Reserves The following table summarizes the changes in total product warranty liability reserves for the periods presented:


Product Warranty
Millions of dollars

2020

2019
Balance at January 1

$
383


$
268

Issuances/accruals during the period

47


67

Settlements made during the period/other

(124
)

(80
)
Balance at March 31

$
306


$
255

 
 
 
 
 
Current portion

$
179


$
182

Non-current portion

127


73

Total

$
306


$
255