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Restructuring Charges (Tables)
 9 Months Ended
Sep. 30, 2015
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Charges
The following tables present the components of the 2015 Plan and the 2014 Plan restructuring charges by segment for the three and nine months ended September 30, 2015 and 2014.
 
Three Months Ended September 30, 2015
 
 
Other
Total
(Dollars in millions)
Severance
Restructuring
Severance and
2015 Plan
Charges
Charges
Other Charges
North America
$
4

$
5

$
9

MENA/Asia Pacific
3

2

5

Europe/SSA/Russia
9

2

11

Latin America
10

—

10

  Subtotal
26

9

35

Land Drilling Rigs
6

—

6

Corporate and Research and Development
8

—

8

  Total
$
40

$
9

$
49


 
Three Months Ended September 30, 2014
 
 
Other
Total
(Dollars in millions)
Severance
Restructuring
Severance and
2014 Plan
Charges
Charges
Other Charges
North America
$
2

$
14

$
16

MENA/Asia Pacific
10

101

111

Europe/SSA/Russia
1

8

9

Latin America
7

6

13

  Subtotal
20

129

149

Land Drilling Rigs
1

4

5

Corporate and Research and Development
—

—

—

  Total
$
21

$
133

$
154


 
Nine Months Ended September 30, 2015
 
 
Other
Total
(Dollars in millions)
Severance
Restructuring
Severance and
2015 Plan
Charges
Charges
Other Charges
North America
$
16

$
22

$
38

MENA/Asia Pacific
14

26

40

Europe/SSA/Russia
21

11

32

Latin America
25

1

26

  Subtotal
76

60

136

Land Drilling Rigs
12

—

12

Corporate and Research and Development
11

—

11

  Total
$
99

$
60

$
159


 
Nine Months Ended September 30, 2014
 
 
Other
Total
(Dollars in millions)
Severance
Restructuring
Severance and
2014 Plan
Charges
Charges
Other Charges
North America
$
15

$
29

$
44

MENA/Asia Pacific
20

108

128

Europe/SSA/Russia
22

14

36

Latin America
29

7

36

  Subtotal
86

158

244

Land Drilling Rigs
5

4

9

Corporate and Research and Development
28

2

30

  Total
$
119

$
164

$
283
Schedule of Restructuring Reserve by Type of Cost
The severance and other restructuring charges gave rise to certain liabilities, the components of which are summarized below, and largely relate to the severance accrued as part of both plans that will be paid pursuant to the respective arrangements and statutory requirements.
 
At September 30, 2015
 
2015 Plan
 
2014 Plan
 
Total Severance
 
 
Other
 
 
Other
 
and Other
 
Severance
Restructuring
 
Severance
Restructuring
 
Restructuring
(Dollars in millions)
Liability
Liability
 
Liability
Liability
 
Liability
North America
$
1

$
2

 
$
—

$
—

 
$
3

MENA/Asia Pacific
4

—

 
1

5

 
10

Europe/SSA/Russia
8

2

 
—

1

 
11

Latin America
1

—

 
—

—

 
1

  Subtotal
14

4

 
1

6

 
25

Land Drilling Rigs
—

—

 
—

—

 
—

Corporate and Research and Development
4

—

 
5

—

 
9

  Total
$
18

$
4

 
$
6

$
6

 
$
34

The following table presents the restructuring liability activity for the nine months ended September 30, 2015.
 
 
 
Nine Months Ended September 30, 2015
 
 
(Dollars in millions)
Accrued Balance at December 31, 2014
 
Charges
 
Cash Payments
 
Other 
 
Accrued Balance at September 30, 2015
2015 Plan:
 
 
 
 
 
 
 
 
 
Severance liability
$
53

 
$
99

 
$
(132
)
 
$
(2
)
 
$
18

Other restructuring liability
—

 
9

 
(8
)
 
3

 
4

2014 Plan:
 
 
 
 
 
 
 
 
 
Severance liability
14

 
—

 
(6
)
 
(2
)
 
6

Other restructuring liability
12

 
—

 
(4
)
 
(2
)
 
6

Total severance and other restructuring liability
$
79

 
$
108

 
$
(150
)
 
$
(3
)
 
$
34