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Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information Supplemental Cash Flow Information
(Millions of dollars)202220212020
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)$1,060 $1,231 $1,235 
Net income taxes paid to (received from) taxing authorities4,869 2,436 (179)
Cash paid for amounts included in the measurement of lease liabilities
Payments on operating leases498 569 651 
Interest payments under finance lease obligations24 21 25 
Net cash provided by financing activities included:
Principal payments under finance lease obligations79 71 66 
Non-cash investing and financing activities:
Right of use assets obtained in exchange for new operating lease obligations367 349 343 
Right of use assets obtained in exchange for new finance lease obligations60 37 110 
Contribution of assets(a)
818 — — 
Book value of equity method investment(b)
150 — — 
(a)    Represents the book value of property, plant and equipment, inventory and working capital contributed by MPC to Martinez Renewables LLC. See Note 16 for additional information.
(b)    Represents the book value of MPC’s equity method investment in Watson Cogeneration Company and Crowley Ocean Partners prior to MPC buying out the remaining interest in these entities. See Note 16 for additional information.
The consolidated statements of cash flows exclude changes to the consolidated balance sheets that did not affect cash. The following is a reconciliation of additions to property, plant and equipment to total capital expenditures:
(Millions of dollars)202220212020
Additions to property, plant and equipment per the consolidated statements of cash flows$2,420 $1,464 $2,787 
Increase (decrease) in capital accruals(37)141 (518)
Total capital expenditures$2,383 $1,605 $2,269