Leases (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Lessee, Lease, Description [Line Items] | ||||
| ROU assets impairment loss | $ 1 | $ 3 | $ 9 | $ 8 |
| Lessee, operating lease, lease not yet commenced, amount | $ 75 | $ 75 | ||
| Minimum | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lessee, operating lease, term of contract (in years) | 10 years | 10 years | ||
| Maximum | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lessee, operating lease, term of contract (in years) | 25 years | 25 years | ||