| Rating | Agency | Rating Description | Term | RankInScale | 
|---|---|---|---|---|
| Ca | Moody's | Extremely speculative | Long-term | 20 | 
| Aa3 | Moody's | High grade | Long-term | 4 | 
| Aa2 | Moody's | High grade | Long-term | 3 | 
| Aa1 | Moody's | High grade | Long-term | 2 | 
| B3 | Moody's | Highly speculative | Long-term | 16 | 
| B2 | Moody's | Highly speculative | Long-term | 15 | 
| B1 | Moody's | Highly speculative | Long-term | 14 | 
| C | Moody's | In default | Long-term | 21 | 
| Baa3 | Moody's | Lower medium grade | Long-term | 10 | 
| Baa2 | Moody's | Lower medium grade | Long-term | 9 |