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Inventories Inventories (Policies)
3 Months Ended
Mar. 31, 2025
Inventory Disclosure [Abstract]  
Inventory, Policy [Policy Text Block] Sunoco LP’s fuel inventories are stated at the lower of cost or market using the LIFO method. As of March 31, 2025 and December 31, 2024, Sunoco LP’s fuel inventory balance included lower of cost or market reserves of $255 million and $316 million, respectively. For the three months ended March 31, 2025 and 2024, the Partnership’s consolidated income statements did not include any material amounts of income from the liquidation of Sunoco LP’s LIFO fuel inventory. For the three months ended March 31, 2025 and 2024, the Partnership’s cost of products sold included favorable inventory valuation adjustments of $61 million and $130 million, respectively, w