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PROVISION FOR INCOME TAXES
6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]  
PROVISION FOR INCOME TAXES
PROVISION FOR INCOME TAXES
 
Second Quarter
 
First Six Months
(Dollars in millions)
2016
 
2015
 
2016
 
2015
Provision for income taxes
$
67

 
$
104

 
$
139

 
$
188

Effective tax rate
21
%
 
26
%
 
22
%
 
29
%


The second quarter and first six months 2016 effective tax rates reflect a benefit from the extension of favorable U.S. federal tax provisions, primarily research and development ("R&D") tax credits and deferral of certain earnings of foreign subsidiaries from U.S. income taxes in fourth quarter of 2015. As a result, the favorable tax provisions will benefit all quarters in 2016, compared to only fourth quarter in 2015. The second quarter and first six months 2016 effective tax rates include a $16 million one-time benefit for the restoration of tax basis for which depreciation deductions were previously limited. The first six months 2016 effective tax rate also reflects a $9 million tax benefit primarily due to adjustments to the tax provision to reflect the finalization of 2014 foreign income tax returns. The second quarter 2015 effective tax rate included a $6 million benefit from the settlement of non-U.S. income tax audits. The first six months 2015 effective tax rate was negatively impacted by an unfavorable foreign rate variance due to increased earnings in higher-tax jurisdictions.