Income Taxes - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Operating Loss Carryforwards [Line Items] | ||||
| (Benefit) provision for income taxes | $ (322) | $ 25 | $ (248) | $ 99 |
| Effective tax rate | 16.10% | 15.50% | 15.60% | 18.30% |
| Valuation allowance related to unrealized capital losses | $ 37 | |||
| Liabilities for uncertain tax positions | 50 | $ 50 | ||
| TRANZACT [Member] | ||||
| Operating Loss Carryforwards [Line Items] | ||||
| Deferred tax (benefit) | (56) | |||
| Valuation allowance on expected tax loss on disposal | 37 | 37 | ||
| Minimum [Member] | ||||
| Operating Loss Carryforwards [Line Items] | ||||
| Expected decrease in liability for uncertain tax position | 1 | 1 | ||
| Maximum [Member] | ||||
| Operating Loss Carryforwards [Line Items] | ||||
| Expected decrease in liability for uncertain tax position | $ 3 | $ 3 | ||
| 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/otherTransitionRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Percentage 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 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 the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|