XML 42 R21.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Interest Expense, net | 12 Months Ended
--- | ---
Dec. 31, 2017
Interest Income (Expense), Net [Abstract] |
Interest Expense, net | Interest Expense, net Components of net interest expense were as follows:
| Year Ended December 31, 2017 |  | Year Ended December 31, 2016 |  | Year Ended December 31, 2015
| (in millions)
Interest expense | $ | 195 |  |  | $ | 153 |  |  | $ | 65 |
Amortization of deferred financing fees | 15 |  |  | 11 |  |  | 4 |
Interest income | (1 | ) |  | (3 | ) |  | (2 | )
Interest expense, net | $ | 209 |  |  | $ | 161 |  |  | $ | 67 |

X
- Definition The net amount of interest expense and interest income related to the cost of borrowing money. + References No definition available. + Details
Name: | sun_InterestIncomeAndInterestExpenseNetDisclosureTextBlock
Namespace Prefix: | sun_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InterestIncomeExpenseNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration