Revenue Recognition - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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Disaggregation of Revenue [Line Items] | ||||
Contract with customer, liability, revenue recognized | $ 279 | $ 267 | $ 1,550 | $ 1,475 |
Revenue, remaining performance obligation, amount | 22,400 | 22,400 | ||
Capitalized contract cost, amortization | $ 104 | $ 84 | $ 279 | $ 218 |
Minimum | ||||
Disaggregation of Revenue [Line Items] | ||||
Contract term | 25 years | |||
Maximum | ||||
Disaggregation of Revenue [Line Items] | ||||
Contract term | 35 years | |||
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-01 | ||||
Disaggregation of Revenue [Line Items] | ||||
Revenue, remaining performance obligation, percentage | 63.00% | 63.00% | ||
Revenue, remaining performance obligation, expected timing of satisfaction, period | 2 years | 2 years |
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- Definition Contract With Customer, Term No definition available.
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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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