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Subsequent Events - Additional Informational (Detail) - BD and Augusta SpinCo Corporation [Member] - USD ($) $ in Millions	Jul. 13, 2025	Jun. 28, 2025
Subsequent Event [Line Items]
Payments of Financing Costs		$ 14
Business Combination, Acquisition-Related Cost, Expense		$ 120
Subsequent Event [Member]
Subsequent Event [Line Items]
Investment company, committed capital	$ 1,800
Incremental debt	4,000
Business combination, price of acquisition, expected	4,000
Termination fee	$ 733
Business Combination, Voting Equity Interest Acquired, Percentage	60.80%
Business Combination, Consideration Transferred	$ 17,500

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