Inventories Inventories (Policies)	6 Months Ended
	Jun. 30, 2023
Inventory Disclosure [Abstract]
Inventory, Policy [Policy Text Block]	Sunoco LP’s fuel inventories are stated at the lower of cost or market using the last-in, first-out (“LIFO”) method. As of June 30, 2023 and December 31, 2022, the carrying value of Sunoco LP’s fuel inventory included lower of cost or market reserves of $144 million and $116 million, respectively. For the three and six months ended June 30, 2023 and 2022, 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 June 30, 2023 and 2022, the Partnership’s cost of products sold included unfavorable inventory adjustments of $57 million and favorable inventory adjustments of $1 million, respectively, related to Sunoco LP’s LIFO inventory. For the six months ended June 30, 2023 and 2022, the Partnership’s cost of products sold included unfavorable inventory adjustments of $28 million and favorable inventory adjustments of $121 million, respectively, related to Sunoco LP’s LIFO inventory.