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Inventory, Linefill and Long-term Inventory - Components of Inventory, Linefill and Long-term Inventory (Details) bbl in Thousands, $ in Millions | Dec. 31, 2022 USD ($) $ / bbl bbl | Dec. 31, 2021 USD ($) $ / bbl bbl
--- | --- | ---
Inventory by category |  |
Inventory | $ 729 | $ 783
Linefill | 961 | 907
Long-term inventory | 284 | 253
Total | $ 1,974 | $ 1,943
Crude oil |  |
Inventory by category |  |
Inventory, Volumes (in barrels) | bbl | 6,713 | 8,041
Linefill, Volumes (in barrels) | bbl | 15,480 | 15,199
Long-term inventory, Volumes (in barrels) | bbl | 3,102 | 2,973
Inventory | $ 452 | $ 544
Linefill | 906 | 862
Long-term inventory | $ 246 | $ 209
Inventory (Price/Unit of measure) (in dollars per unit) | $ / bbl | 67.33 | 67.65
Linefill (Price/Unit of measure) (in dollars per unit) | $ / bbl | 58.53 | 56.71
Long-term inventory (Price/Unit of measure) (in dollars per unit) | $ / bbl | 79.30 | 70.30
NGL |  |
Inventory by category |  |
Inventory, Volumes (in barrels) | bbl | 7,285 | 6,982
Linefill, Volumes (in barrels) | bbl | 1,876 | 1,633
Long-term inventory, Volumes (in barrels) | bbl | 1,066 | 1,135
Inventory | $ 270 | $ 234
Linefill | 55 | 45
Long-term inventory | $ 38 | $ 44
Inventory (Price/Unit of measure) (in dollars per unit) | $ / bbl | 37.06 | 33.51
Linefill (Price/Unit of measure) (in dollars per unit) | $ / bbl | 29.32 | 27.56
Long-term inventory (Price/Unit of measure) (in dollars per unit) | $ / bbl | 35.65 | 38.77
Other |  |
Inventory by category |  |
Inventory | $ 7 | $ 5

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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 + Details
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