v3.19.2

Debt (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Debt Disclosure [Abstract] |
Schedule of Debt | Debt Balance, Net of Unamortized Issuance Costs (in millions)
| June 30, 2019 |  | December 31, 2018
Total debt | $ | 5,263 |  |  | $ | 5,010 |
Unamortized issuance costs | (40 | ) |  | (46 | )
Current maturities | (503 | ) |  | (504 | )
Debt, Net of Current Maturities and Unamortized Issuance Costs | $ | 4,720 |  |  | $ | 4,460 |
Schedule of Line of Credit Facilities | Available Capacity Under Credit Facilities (in millions) (a)
| Total Capacity |  | Amount Borrowed as of June 30, 2019 |  | Outstanding Letters of Credit |  | Available Capacity as of June 30, 2019 |  | Weighted Average Interest Rate |  | Expiration
Revolving Credit Facility | $ | 1,100 |  |  | $ | 1,070 |  |  | $ | — |  |  | $ | 30 |  |  | 3.90 | % |  | January 29, 2021
Dropdown Credit Facility | 1,000 |  |  | 430 |  |  | — |  |  | 570 |  |  | 3.92 | % |  | January 29, 2021
MPC Loan Agreement | 500 |  |  | — |  |  | — |  |  | 500 |  |  | — | % |  | December 21, 2023
Total Credit Facilities | $ | 2,600 |  |  | $ | 1,500 |  |  | $ | — |  |  | $ | 1,100 |  |  |  |  |
(a) In conjunction with the MPLX Merger, on July 30, 2019, all outstanding borrowings and unpaid fees on our credit facilities were repaid and the agreements were terminated, including the MPC Loan Agreement.

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

X
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration