Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Discontinued Operations - Additional information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Oct. 01, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Link-16 Tactical Data Link Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal consideration				$ 1,960.0
Costs incurred to sell or dispose of a business or unit	$ 40.8
Gain from the sale of the Link-16 TDL Business	$ 1,660.0