Research and Development	12 Months Ended
Jun. 30, 2023
Research and Development [Abstract]
Research and Development	Research and Development Independent research and development costs amounted to $258 million in 2023, $191 million in 2022 and $205 million in 2021. Pre-production expense incurred in connection with development contracts amounted to $73 million in 2023, $74 million in 2022 and $54 million in 2021.

The entire disclosure for research, development, and computer software activities, including contracts and arrangements to be performed for others and with federal government. Includes costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility and in-process research and development acquired in a business combination consummated during the period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 730
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483041/730-20-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 985
-SubTopic 730
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//985-730/tableOfContent

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