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Restructuring Charges (Tables)
 12 Months Ended
Dec. 31, 2019
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Charges
 
Western Hemisphere
Eastern Hemisphere
Corporate
Total
Successor Period - 2019
$
—

$
—

$
—

$
—

Predecessor Period - 2019
84

50

55

189

2018
27

45

54

126

2017
70

77

36

183

 
 
 
 
Schedule of Restructuring Reserve by Type of Cost
The following table presents total restructuring accrual activity charges, payments and other changes for the Successor and Predecessor Periods in 2019 and the years ended December 31, 2018 and 2017. In the first quarter of 2019, we reclassified $12 million of restructuring cease-use liability to the initial ROU asset in accordance with the adoption of Topic 842.
(Dollars in millions)
Accrued Balance at Beginning of Period
 
Charges
 
Cash Payments
 
Other 
 
Accrued Balance at End of Period
Successor - 2019
$
66

 
$
—

 
$
—

 
$
—

 
$
66

Predecessor - 2019
$
59

 
$
152

 
$
(120
)
 
$
(25
)
 
$
66

2018
$
61

 
$
120

 
$
(109
)
 
$
(13
)
 
$
59

2017
$
86

 
$
171

 
$
(167
)
 
$
(29
)
 
$
61


The restructuring charges accrual in the table above excludes restructuring related asset charges of $37 million in the 2019 Predecessor Period, $6 million for the period ended December 31, 208 and $12 million for the period ended December 31, 2017.