| Component: (Network and Table) | |
|---|---|
| Network | 066 - Disclosure - Postretirement Benefit Obligations (Details) - Estimated Future Benefit Payments (http://advan6.com/role/EstimatedFutureBenefitPaymentsTable) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001673985 (http://www.sec.gov/CIK) |
| Estimated Future Benefit Payments [Abstract] | Period [Axis] |
|---|---|
2016-12-31 | |
Estimated Future Benefit Payments [Abstract] | |
2017 | |
2018 | |
2019 | |
2020 | |
2021 | |
2022–2026 |