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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2022
Inventories |
Schedule of inventories | ​
​ | ​ | ​ | ​ | ​ | ​
​ | December 31, | ​ | December 31,
​ | 2022 |  | 2021
​ | (in millions)
LIFO inventories - cost on FIFO method | $ | 2,257.9 | ​ | $ | 2,498.2
Cost on FIFO method higher than LIFO value | ​ | (743.8) | ​ | ​ | (820.4)
Inventories - stated on LIFO method | ​ | 1,514.1 | ​ | ​ | 1,677.8
Inventories - stated on FIFO method | ​ | 481.2 | ​ | ​ | 387.2
​ | $ | 1,995.3 | ​ | $ | 2,065.0
​
Schedule of changes in the LIFO valuation reserve | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Year Ended December 31,
​ | 2022 |  | 2021 |  | 2020
​ | (in millions)
LIFO inventory valuation reserve (income) expense | $ | (76.6) | ​ | $ | 704.8 | ​ | $ | (22.0)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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