XML 123 R94.htm IDEA: XBRL DOCUMENT v3.24.3
Debt (Available Capacity under our Facilities) (Details)
$ in Millions
Sep. 30, 2024
USD ($)
MPC bank revolving credit facility due July 2027  
Debt Instrument [Line Items]  
Total Capacity $ 5,000
Outstanding Borrowings 0
Outstanding Letters of Credit 1
Available Capacity $ 4,999
Weighted Average Interest Rate 0.00%
MPC trade receivables securitization facility due September 2027  
Debt Instrument [Line Items]  
Total Capacity $ 100 [1]
Outstanding Borrowings 0
Outstanding Letters of Credit 0
Available Capacity $ 100
Weighted Average Interest Rate 0.00%
Maximum borrowing capacity $ 100
MPLX LP | MPLX bank revolving credit facility due July 2027  
Debt Instrument [Line Items]  
Total Capacity 2,000
Outstanding Borrowings 0
Outstanding Letters of Credit 0
Available Capacity $ 2,000
Weighted Average Interest Rate 0.00%
[1] The committed borrowing and letter of credit issuance capacity under the trade receivables securitization facility is $100 million. In addition, the facility allows for the issuance of letters of credit in excess of the committed capacity at the discretion of the issuing banks.