Lease Obligations - Additional Information (Details) $ in Millions |
Dec. 31, 2021
USD ($)
|
|---|---|
| Leases [Abstract] | |
| Operating lease future lease payments include sublease rental income 2022 | $ 7 |
| Operating lease future lease payments include sublease rental income 2023 | 6 |
| Operating lease future lease payments include sublease rental income 2024 | 5 |
| Operating lease future lease payments include sublease rental income 2025 | $ 2 |