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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2017
Restructuring and Related Activities [Abstract]  
Summary of Severance Charges and Associated Spending
The following table summarizes the severance charges and the associated spending under this initiative through the fiscal year ended 2017:
(Dollars in Millions)

Severance
Asset Write-offs
Other**
Total
2015 restructuring charge
$
484

86

20

590

 
 
 
 
 
2015 activity
 
(86
)
(3
)
(89
)
 
 
 
 
 
Reserve balance, January 3, 2016
484

—

17

501

 
 
 
 
 
2016 activity
(104
)
—

(16
)
(120
)
 
 
 
 
 
Reserve balance, January 1, 2017
380

—

1

381

 
 
 
 
 
Current year activity:
 
 
 
 
   Charges
 
194

656

850

   Cash payments
(61
)
 
(619
)
(680
)
   Settled non cash
 
(194
)
 
(194
)
   Accrual adjustment
(90
)
 
 
(90
)
 
 
 
 
 
Reserve balance, December 31, 2017*
$
229

—

38

267

 
 
 
 
 
*Cash outlays for severance are expected to be substantially paid out over the next 18 months in accordance with the Company's plans and local laws.
**Other includes project expense such as salaries for employees supporting the initiative and consulting expenses.