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Basis of Presentation and Summary of Significant Accounting Policies (Narrative, Inventories) (Details) - USD ($) $ in Millions | 12 Months Ended |
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Jun. 30, 2021 | Jun. 30, 2022
Accounting Policies [Abstract] |  |
Portion of inventories held at LIFO, percentage | 50.00% | 52.00%
Inventories valued at LIFO amount higher than average cost value | $ 565 | $ 416
Inventory Write-down | 197 |
Inventory Reserve Excess and Obsolete [Member] |  |
Inventory Reserve Table [Line Items] |  |
Reserves for excess and obsolete inventory | $ 185 | 147
Inventory Reserve Write-down to Net Realizable Value [Member] |  |
Inventory Reserve Table [Line Items] |  |
Reserves for excess and obsolete inventory |  | $ 42

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- Definition Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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