Income Tax (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 30, 2024 |
Apr. 30, 2023 |
|
| Income Tax Disclosure [Abstract] | ||
| Provision for income taxes | $ 57 | $ 60 |
| Pre-tax income | 309 | $ 221 |
| Unrecognized tax benefits | 267 | |
| Amount of gross unrecognized tax benefits that would impact the effective tax rate, if recognized | 224 | |
| Unrecognized tax benefits that would reduce valuation allowance if recognized | 43 | |
| Decrease in unrecognized tax benefits in the next twelve months for statute lapse | $ 0 | |
| X | ||||||||||
- Definition Unrecognized Tax Benefits that Would Impact Valuation Allowance No definition available.
|
| X | ||||||||||
- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|