Additional Financial Information - Narrative (Detail) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-10-01 $ in Billions	Sep. 30, 2024 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue, remaining performance obligation, amount	$ 4.9
Minimum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Future performance obligation, expected timing of satisfaction, period	1 year
Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Future performance obligation, expected timing of satisfaction, period	3 years