**Step 1: Identify the relevant industry**

A2A ENERGIA S.P.A. is an Italian utility company involved in the production, distribution, and sale of electricity, gas, and water, as well as waste management and district heating. The provided methodologies include "Regulated Utilities," "Oil And Gas Exploration And Production," "Unregulated Power And Gas," and "Transportation Infrastructure."

Given that A2A operates essential infrastructure services (electricity, gas, water) and is subject to regulatory oversight in Italy (a regulated environment for network activities), the **Regulated Utilities** methodology is the most appropriate classification. While it has unregulated generation and trading activities, the core business profile aligns with regulated multi-utilities. The methodology notes that for integrated players, we look at the regulatory advantage. Italy generally has a stable regulatory framework for utilities. We will apply the Regulated Utilities guidelines, specifically noting the volatility table selection. Given the mix of regulated networks and merchant/unregulated generation/trading, and the high volatility in energy prices seen in 2022, it likely falls under the **Standard Volatility Table** or potentially Medial if the regulated portion is dominant and stable. However, for the purpose of the ratio calculations requested (Adjusted EBITDA, FFO, Adjusted Debt), the definitions are relatively standard across these utility sectors, with specific adjustments for leases and pensions. The prompt asks to estimate ratios based on the provided facts.

**Step 2: Estimate 2021 Adjusted_EBITDA**

*   **Reported EBITDA:** The fact sheet provides "Gross Operating Income EBITDA" for the period 2021-01-01 to 2022-01-01 (Fiscal Year 2021) as **1,428,000,000 EUR**.
*   **Adjustments:**
    *   *Leases:* The cash flow statement shows "Payments Of Lease Liabilities Classified As Financing Activities" of 2,000,000 EUR for 2021. This is a small amount. S&P typically adds back lease interest and depreciation if not already in EBITDA, or adjusts debt. In many utility reports, EBITDA is reported before lease depreciation/interest if IFRS 16 is applied differently, but usually, "Gross Operating Income" is a good proxy for EBITDA. We will assume the reported EBITDA is the starting point. There are no explicit "nonrecurring_losses" or "nonrecurring_gains" listed separately in the P&L summary other than "Result From Nonrecurring Transactions" which is 0 for 2021.
    *   *Pension:* "Noncurrent Provisions For Employee Benefits" decreased from 294M to 248M (in 2022 balance sheet, implying 2021 start was higher? No, 2022-01-01 is end of 2021. So 2021 End Provision = 294M. 2020 End Provision is not given, but we can look at the P&L charge. The P&L doesn't explicitly break out pension service cost vs interest. However, the OCI shows "Gains Losses On Remeasurements Of Defined Benefit Plans" of -38,000,000 EUR (pre-tax) for 2021. S&P often adjusts for pension deficits. Without a full actuarial valuation, we typically look at the funded status. We don't have plan assets. We will stick to the reported EBITDA as the primary figure, assuming standard adjustments are minimal or netted out in the "Gross Operating Income" line provided by the company which is often used as the EBITDA proxy in European utilities.
    *   *Joint Ventures:* "Share Of Profit Loss Of Associates... " is 2,000,000 EUR. This is equity income, usually below EBITDA. No adjustment needed to EBITDA unless we are consolidating proportionally, which S&P does for some JVs. However, the investment is small (33M). We will ignore proportional consolidation for this high-level estimate as the impact is negligible.
    *   *Other:* "Result From Nonrecurring Transactions" is 0.

    **2021 Adjusted_EBITDA = 1,428,000,000 EUR**

**Step 3: Estimate 2021 FFO**

*   **Formula:** FFO = Adjusted_EBITDA - cash_interest - cash_taxes
*   **Cash Interest:** The fact sheet provides "Finance Costs" of 89,000,000 EUR and "Finance Income" of 17,000,000 EUR. Net Finance Costs = 72,000,000 EUR. The Cash Flow statement shows "Interest Paid Classified As Operating Activities" of **80,000,000 EUR**. S&P uses cash interest paid.
*   **Cash Taxes:** The Cash Flow statement shows "Income Taxes Paid Refund Classified As Operating Activities" of **165,000,000 EUR**. Note: This is a refund? The label says "Paid Refund". The value is positive in the context of adjustments? Let's check the sign convention. In the 2022 period, Tax Expense is 344M, Tax Paid is 201M. In 2021, Tax Expense is 36M, Tax Paid is 165M. Wait, if Tax Expense is 36M and Tax Paid is 165M, it implies a large payment of prior year taxes or a refund *received*? The label "Income Taxes Paid Refund" is ambiguous. Usually, cash outflows are negative in CF statements. Here, the numbers are presented as absolute magnitudes or inflows/outflows?
    *   Let's look at 2022: Tax Expense 344M. Tax Paid 201M. This makes sense (paying current + some prior).
    *   Let's look at 2021: Tax Expense 36M. Tax Paid 165M. This is significantly higher than expense. It likely represents cash *outflow* for taxes.
    *   However, sometimes "Refund" implies an inflow. If it were a refund, it would increase FFO. If it were a payment, it decreases FFO. Given the low tax expense (36M) compared to Profit Before Tax (590M), the effective tax rate is very low (6%). This might be due to deferred tax assets or credits. The cash flow of 165M is likely a payment. Let's assume it is a cash **outflow** (payment) of 165,000,000 EUR.
    *   *Correction/Refinement:* In many data feeds, "Income Taxes Paid" is an outflow. If the value is positive in the provided list, we must determine if it's an inflow or outflow. Standard S&P FFO calculation subtracts cash taxes paid. If 165M was a refund, it would be added. Given the company is profitable (550M Net Income), it is more likely paying taxes. The high amount relative to current expense suggests payment of prior years' liabilities. We will treat 165,000,000 EUR as a cash outflow.

    **2021 FFO** = 1,428,000,000 - 80,000,000 - 165,000,000 = **1,183,000,000 EUR**

**Step 4: Estimate 2021 Adjusted_Debt**

*   **Formula:** Adjusted_Debt = Reported_Debt + Leases + Pension_Deficit + ... - Eligible_Cash
*   **Reported Debt:** We need to sum interest-bearing debt.
    *   From Balance Sheet 2022-01-01 (End of 2021):
        *   "Other Noncurrent Financial Liabilities": 4,322,000,000 EUR
        *   "Other Current Financial Liabilities": 746,000,000 EUR
        *   Total Reported Debt = 4,322 + 746 = **5,068,000,000 EUR**
    *   *Note:* "Trade And Other Current Payables" are operating liabilities, not debt.
*   **Leases:** "Payments Of Lease Liabilities" was 2M. The liability itself is likely embedded in "Other Noncurrent/Current Financial Liabilities" or "Other Noncurrent Liabilities". Under IFRS 16, lease liabilities are financial liabilities. We assume they are included in the financial liabilities above. If not, the amount is negligible (<10M). We will assume the reported financial liabilities include lease obligations.
*   **Pension Deficit:** "Noncurrent Provisions For Employee Benefits" is 294,000,000 EUR. S&P often treats the underfunded portion of pension obligations as debt-like. Without plan assets, we might treat the provision as a proxy for the deficit or adjust. However, standard practice often adds the *underfunded* amount. If we assume the provision represents the net liability on the balance sheet, we can add it to debt or consider it already a liability. S&P adjustments usually *add* pension deficits to debt. If the provision is 294M, we add **294,000,000 EUR** to debt to be conservative, or check if it's already in "Financial Liabilities". Provisions are usually separate from Financial Liabilities. So we add it.
*   **Eligible Cash:** "Cash And Cash Equivalents" at 2022-01-01 is **964,000,000 EUR**. S&P deducts unrestricted cash.

    **2021 Adjusted_Debt** = 5,068,000,000 (Debt) + 294,000,000 (Pension Provision) - 964,000,000 (Cash)
    **2021 Adjusted_Debt** = **4,398,000,000 EUR**

    *(Self-Correction on Pension: S&P typically adds the underfunded status. The provision on the balance sheet is the net liability. So adding the full provision is a standard conservative approximation if asset details are missing.)*

**Step 5: Calculate 2021 Adjusted_Debt / Adjusted_EBITDA**

    Ratio = 4,398,000,000 / 1,428,000,000 ≈ **3.08x**

**Step 6: Calculate 2021 FFO / Adjusted_Debt**

    Ratio = 1,183,000,000 / 4,398,000,000 ≈ **0.269** (or 26.9%)

**Step 7: Estimate 2022 Adjusted_EBITDA**

*   **Reported EBITDA:** "Gross Operating Income EBITDA" for 2022 (2022-01-01 to 2023-01-01) is **1,505,000,000 EUR**.
*   **Adjustments:**
    *   Nonrecurring: "Result From Nonrecurring Transactions" is 157,000,000 EUR. This is a gain (positive result). S&P adjusts EBITDA by removing nonrecurring gains. So we subtract 157M.
    *   Adjusted EBITDA = 1,505,000,000 - 157,000,000 = **1,348,000,000 EUR**.
    *   *Note:* The prompt formula says `+ nonrecurring_losses - nonrecurring_gains`. A positive "Result From Nonrecurring Transactions" is a gain.

    **2022 Adjusted_EBITDA = 1,348,000,000 EUR**

**Step 8: Estimate 2022 FFO**

*   **Cash Interest:** "Interest Paid Classified As Operating Activities" for 2022 is **75,000,000 EUR**.
*   **Cash Taxes:** "Income Taxes Paid Refund Classified As Operating Activities" for 2022 is **201,000,000 EUR**. As established, this is likely a cash outflow (payment).
*   **2022 FFO** = 1,348,000,000 - 75,000,000 - 201,000,000 = **1,072,000,000 EUR**

**Step 9: Estimate 2022 Adjusted_Debt**

*   **Reported Debt:** From Balance Sheet 2023-01-01 (End of 2022):
    *   "Other Noncurrent Financial Liabilities": 5,867,000,000 EUR
    *   "Other Current Financial Liabilities": 1,022,000,000 EUR
    *   Total Reported Debt = 5,867 + 1,022 = **6,889,000,000 EUR**
*   **Pension Deficit:** "Noncurrent Provisions For Employee Benefits" at 2023-01-01 is **248,000,000 EUR**. Add this to debt.
*   **Eligible Cash:** "Cash And Cash Equivalents" at 2023-01-01 is **2,584,000,000 EUR**.

    **2022 Adjusted_Debt** = 6,889,000,000 (Debt) + 248,000,000 (Pension) - 2,584,000,000 (Cash)
    **2022 Adjusted_Debt** = **4,553,000,000 EUR**

**Step 10: Calculate 2022 Adjusted_Debt / Adjusted_EBITDA**

    Ratio = 4,553,000,000 / 1,348,000,000 ≈ **3.38x**

**Step 11: Calculate 2022 FFO / Adjusted_Debt**

    Ratio = 1,072,000,000 / 4,553,000,000 ≈ **0.235** (or 23.5%)

**Step 12: Classify the credit trend**

*   **Signal 1: Leverage (Adjusted_Debt / Adjusted_EBITDA)**
    *   2021: 3.08x
    *   2022: 3.38x
    *   Change: 3.38 - 3.08 = **+0.30x**
    *   Threshold: ≥ +0.2x is **Deteriorating**.

*   **Signal 2: Cash-flow coverage (FFO / Adjusted_Debt)**
    *   2021: 0.269
    *   2022: 0.235
    *   Change: 0.235 - 0.269 = **-0.034**
    *   Threshold: ≤ -0.03 is **Deteriorating**.

*   **Combination:**
    *   Signal 1: Deteriorating
    *   Signal 2: Deteriorating
    *   Both signals agree.

**Conclusion:** The credit trend is Deteriorating. The company's leverage increased by 0.30x, and its funds from operations coverage of debt decreased by 3.4 percentage points. This is driven by a decrease in Adjusted EBITDA (after removing non-recurring gains) and FFO, combined with an increase in net debt (despite higher cash balances, gross debt increased significantly).

<answer>Deteriorating</answer>