Nature of Operations and Summary of Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|
| Disposal Group, Including Discontinued Operations [Line Items] | ||||
| Cash and cash equivalents | $ 272 | $ 347 | $ 399 | $ 312 |
| Cash and cash equivalents including disposal group | 519 | 590 | 621 | 471 |
| Cash and cash equivalents included in Assets held for sale | ||||
| Disposal Group, Including Discontinued Operations [Line Items] | ||||
| Cash and cash equivalents, disposal group, including discontinued operations | 5 | 0 | 0 | 2 |
| Cash and cash equivalents included in Current assets of discontinued operations | ||||
| Disposal Group, Including Discontinued Operations [Line Items] | ||||
| Cash and cash equivalents, disposal group, including discontinued operations | $ 242 | $ 243 | $ 222 | $ 157 |
| X | ||||||||||
- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; including, but not limited to, discontinued operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| 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
|