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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 68 $ 5
Receivables, net 417 292
Receivables - related parties 289 160
Inventories 77 65
Other current assets 46 37
Total current assets 897 559
Equity method investments 4,174 4,010
Property, plant and equipment, net 14,639 12,187
Intangibles, net 424 453
Goodwill 2,586 2,245
Long-term receivables - related parties 24 20
Other noncurrent assets 35 26
Total assets 22,779 19,500
Current liabilities:    
Accounts payable 162 151
Accrued liabilities 250 231
Payables - related parties 203 516
Deferred revenue - related parties 51 43
Accrued property, plant and equipment 294 194
Accrued interest payable 143 88
Other current liabilities 83 81
Total current liabilities 1,186 1,304
Long-term deferred revenue 80 42
Long-term deferred revenue - related parties 43 43
Long-term debt 13,392 6,945
Deferred income taxes 13 5
Deferred credits and other liabilities 197 188
Total liabilities 14,911 8,527
Commitments and contingencies (see Note 25)
Redeemable preferred units 1,004 1,000
Equity    
Total MPLX LP partners’ capital 6,708 9,827
Accumulated other comprehensive loss (16) (14)
Noncontrolling interests 156 146
Total equity 6,864 9,973
Total liabilities, preferred units and equity 22,779 19,500
MPC    
Current assets:    
Receivables - related parties 281 153
Long-term receivables - related parties 24 20
Current liabilities:    
Payables - related parties [1] 131 470
Limited Partners Common Units | Public    
Equity    
Total MPLX LP partners’ capital 8,336 8,379
Total equity 8,336 8,379
Limited Partners Common Units | MPC    
Equity    
Total MPLX LP partners’ capital (1,612) 2,099
Total equity (1,612) 2,099
Limited Partners Class B Units | Public    
Equity    
Total equity 0 0
General Partner | MPC    
Equity    
Total MPLX LP partners’ capital 0 (637)
Total equity 0 (637)
LOOP and Explorer    
Equity    
Accumulated other comprehensive loss $ (16) $ (14)
[1] Balance includes $386 million related to the MPC Loan Agreement as of December 31, 2017. There was no outstanding balance on the MPC Loan Agreement as of December 31, 2018.