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Income Taxes Income Taxes (Tables)
12 Months Ended
Dec. 31, 2017
Federal and State Income Taxes [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
The components of the federal and state income tax expense (benefit) of our taxable subsidiaries were summarized as follows:
 
Years Ended December 31,
 
2017
 
2016
 
2015
Current expense (benefit):
 
 
 
 
 
Federal
$
54

 
$
(47
)
 
$
(308
)
State
(16
)
 
(34
)
 
(54
)
Total
38

 
(81
)
 
(362
)
Deferred expense (benefit):
 
 
 
 
 
Federal
(2,055
)
 
(189
)
 
268

State
184

 
12

 
(29
)
Total
(1,871
)
 
(177
)
 
239

Total income tax expense (benefit) from continuing operations
$
(1,833
)
 
$
(258
)
 
$
(123
)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Historically, our effective tax rate has differed from the statutory rate primarily due to partnership earnings that are not subject to United States federal and most state income taxes at the partnership level. A reconciliation of income tax expense (benefit) at the United States statutory rate to the income tax expense (benefit) attributable to continuing operations for the years ended December 31, 2017, 2016 and 2015 is as follows:
 
2017
 
2016
 
2015
Income tax expense (benefit) at United States statutory rate of 35 percent
$
248

 
$
71

 
$
316

Increase (reduction) in income taxes resulting from:
 
 
 
 
 
Partnership earnings not subject to tax
(477
)
 
(576
)
 
(355
)
Goodwill impairment
207

 
278

 

State tax, net of federal tax benefit
124

 
(10
)
 
(29
)
Dividend received deduction
(14
)
 
(15
)
 
(22
)
Federal rate change
(1,812
)
 

 

Audit settlement

 

 
(7
)
Change in tax status of subsidiary
(124
)
 

 

Other
15

 
(6
)
 
(26
)
Income tax expense (benefit) from continuing operations
$
(1,833
)
 
$
(258
)
 
$
(123
)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Deferred taxes result from the temporary differences between financial reporting carrying amounts and the tax basis of existing assets and liabilities. The table below summarizes the principal components of the deferred tax assets (liabilities) as follows:
 
December 31,
 
2017
 
2016
Deferred income tax assets:
 
 
 
Net operating losses and alternative minimum tax credit
$
683

 
$
472

Pension and other postretirement benefits
21

 
30

Long-term debt
14

 
32

Other
191

 
182

Total deferred income tax assets
909

 
716

Valuation allowance
(189
)
 
(118
)
Net deferred income tax assets
720

 
598

 
 
 
 
Deferred income tax liabilities:
 
 
 
Property, plant and equipment
(1,036
)
 
(1,633
)
Investments in unconsolidated affiliates
(2,726
)
 
(3,789
)
Trademarks
(173
)
 
(273
)
Other
(100
)
 
(15
)
Total deferred income tax liabilities
(4,035
)
 
(5,710
)
Net deferred income taxes
$
(3,315
)
 
$
(5,112
)
ScheduleOfUnrecognizedTaxBenefits [Table Text Block]
The following table sets forth the changes in unrecognized tax benefits:
 
Years Ended December 31,
 
2017
 
2016
 
2015
Balance at beginning of year
$
615

 
$
610

 
$
440

Additions attributable to tax positions taken in the current year

 
8

 
178

Additions attributable to tax positions taken in prior years
28

 
18

 

Reduction attributable to tax positions taken in prior years
(25
)
 
(20
)
 

Lapse of statute
(9
)
 
(1
)
 
(8
)
Balance at end of year
$
609

 
$
615

 
$
610

Summary of Deferred Tax Liability Not Recognized [Table Text Block]
The table below provides a rollforward of the net deferred income tax liability as follows:
 
December 31,
 
2017
 
2016
Net deferred income tax liability, beginning of year
$
(5,112
)
 
$
(4,590
)
Goodwill associated with Sunoco Retail to Sunoco LP transaction (see Note 3)

 
(460
)
Net assets (excluding goodwill) associated with Sunoco Retail to Sunoco LP (see Note 3)

 
(243
)
Tax provision, including provision from discontinued operations
1,825

 
201

Other
(28
)
 
(20
)
Net deferred income tax liability
$
(3,315
)
 
$
(5,112
)