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Revenue - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Revenue from Contract with Customer [Abstract] |  |  |
Contract with customer, liability, revenue recognized | $ 12 | $ 17 | $ 24
UNITED STATES | Revenue Benchmark | Contracts with U.S. Government Agencies or Other U.S. Government Contractors |  |  |
Product Information [Line Items] |  |  |
Concentration risk (as a percent) | 98.00% | 98.00% | 97.00%

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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-8 + Details
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