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Goodwill and other intangible assets - Additional information 2 (Details) - USD ($) | 1 Months Ended |  |
--- | --- | --- | ---
Jul. 31, 2024 | Sep. 30, 2024 | Jul. 31, 2023
Goodwill and other intangible assets |  |  |
Percent of company's total goodwill balance | 93.00% |  |
Minimum |  |  |
Goodwill and other intangible assets |  |  |
Cost of equity discount rate |  | 11.99% |
Maximum |  |  |
Goodwill and other intangible assets |  |  |
Cost of equity discount rate |  | 15.93% |
BPPR |  |  |
Goodwill and other intangible assets |  |  |
Goodwill impairment recognized | $ 0 |  |
Percentage excess of fair value of reporting unit over equity value | 303.00% |  | 468.00%
Fair Value Excess Over Carrying Amount | $ 3,700,000,000 |  | $ 3,700,000,000
PB |  |  |
Goodwill and other intangible assets |  |  |
Goodwill impairment recognized | $ 0 |  |
Percentage excess of fair value of reporting unit over equity value | 34.00% |  | 8.00%
Fair Value Excess Over Carrying Amount | $ 584,000,000 |  | $ 129,000,000

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- Definition Cost of equity to discount the cash flow using the ibbotson build-up method. + References No definition available. + Details
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- Definition Goodwill and Intangible Assets Disclosure [Line Items] + References No definition available. + Details
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- Definition The percentage of goodwill balance over company's overall goodwill + References No definition available. + Details
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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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- Definition Percentage of fair value of reporting unit in excess of carrying amount. + References No definition available. + Details
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