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Warranty Obligations
 12 Months Ended
Dec. 31, 2019
Product Warranties Disclosures [Abstract]  
Warranty Obligations [Text Block] Warranty Obligations

We record a liability for estimated warranty obligations at the dates our products are sold. We record the liability based on our estimate of costs to settle future claims. Adjustments to our estimated costs at time of sale are made as claim experience and other new information becomes available. Obligations for service campaigns and other occurrences are recognized as adjustments to prior estimates when the obligation is probable and can be reasonably estimated.

Changes in warranty liabilities —
 
2019
 
2018
 
2017
Balance, beginning of period
$
75

 
$
76

 
$
66

Acquisitions
24

 


 
6

Amounts accrued for current period sales
35

 
37

 
32

Adjustments of prior estimates
2

 
(1
)
 
11

Settlements of warranty claims
(35
)
 
(35
)
 
(42
)
Currency impact


 
(2
)
 
3

Balance, end of period
$
101

 
$
75

 
$
76