Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Billions	3 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Amount of remaining performance obligations	$ 5.1
Revenue from Contract with Customer Benchmark \| Customer Concentration Risk \| Two Customers
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total revenue percentage	50.00%
Revenue from Contract with Customer Benchmark \| Customer Concentration Risk \| Four Customers
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total revenue percentage		86.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 \| Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Percentage of remaining performance obligations	60.00%
Expected time period of satisfaction (in years)	12 months

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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