v3.26.1
Debt (Tables)
6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Schedule of Debt
MPLX’s outstanding borrowings consist of the following:
(In millions)June 30,
2026
December 31,
2025
MPLX LP:
Fixed rate senior notes$25,969 $25,969 
Consolidated subsidiaries:
ANDX31 31 
Finance lease obligations
Total26,005 26,006 
Unamortized debt issuance costs(181)(174)
Unamortized discount(184)(179)
Amounts due within one year(1,251)(1,502)
Total long-term debt due after one year$24,389 $24,151