Let’s proceed step-by-step.

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**Step 1 – Identify the relevant industry for ENGIE**

ENGIE is a global energy and services company, historically a gas utility but now operating across renewables, energy networks, energy supply, and services. Given the description and available data, it does not fit purely into “Regulated Utilities” or “Oil and Gas E&P.” It matches **Unregulated Power and Gas** because of its diversified generation, retail supply, and renewables with some contracted revenues.

For financial ratio adjustments, the methodology references the **Corporate Methodology: Ratios And Adjustments** for the formulas; no special override is given that changes the FFO or debt definitions for unregulated power and gas.

So we use the **baseline formulas**.

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**Step 2 – Estimate Adjusted EBITDA**

First, reconstruct EBITDA from the income statement items:

Revenues 2022: 93,865,000,000 EUR  
Less: Purchases And Operating Derivatives: (74,535,000,000)  
Less: Employee Benefits Expense: (8,078,000,000)  
Less: Tax Expense Other Than Income Tax: (3,380,000,000)  
Add: Other Income: 1,624,000,000  

This yields Current Operating Income Including Operating MtM = **4,309,000,000 EUR** (matches given).

Add back:
- Depreciation, Amortization, and Provisions: 5,187,000,000 EUR  
- Share of profit of associates/JV (equity method): 1,059,000,000 EUR  

That yields Current Operating Income Including MtM and Share in Net Income of Equity Method Entities = **5,367,000,000 EUR** (matches given).

Now, adjust to get EBITDA:
- Reported EBITDA = Current Operating Income Including MtM + Depreciation, Amortization, Provisions + Equity-accounted income  
  = 4,309M + 5,187M + 1,059M = 10,555,000,000 EUR

Non-recurring items to normalize:
- Impairment Loss (add back because it’s non-recurring loss): +2,774,000,000  
- Restructuring expense: +230,000,000  
- Other Non-Recurring Items: these are negative (loss) –1,328,000,000, so add back +1,328,000,000  
- Other income/expense from subsidiaries/JV/associates (non-recurring gains): (91,000,000) → subtract from EBITDA  

So:
Adjusted EBITDA = 10,555M + 2,774M + 230M + 1,328M – 91M = 14,796,000,000 EUR

*(No lease adjustments, pension adjustments, or proportional JV EBITDA data to refine further.)*

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**Step 3 – Estimate FFO**

FFO = Adjusted EBITDA – Cash Interest – Cash Taxes

From the data:
- Finance Costs: 3,700,000,000 EUR  
- Finance Income: 697,000,000 EUR  
Net finance cost = 3,003,000,000 EUR (matches given).

Cash interest ≈ net finance cost less non-cash interest. Non-cash portion unknown but interest paid (from cash flow) = 822,000,000 EUR classified in financing.  
Also, interest received on cash = 194,000,000 EUR classified in financing.

Cash interest net = interest paid – interest received = 822M – 194M = 628,000,000 EUR.

Cash taxes:
- Income taxes paid (from cash flow): 1,504,000,000 EUR  

FFO = 14,796M – 628M – 1,504M = 12,664,000,000 EUR.

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**Step 4 – Estimate Adjusted Debt**

Debt components (balance sheet 31 Dec 2022):
- Long-term borrowings: 28,083,000,000 EUR  
- Current borrowings: 12,508,000,000 EUR  
Total reported debt = 40,591,000,000 EUR.

Add:
- Pension deficit: Noncurrent provisions for pensions included in 24,663M total provisions— likely some portion is pension, but for S&P, we use net pension deficit if disclosed. In absence of detail, assume embedded in debt-like provisions: no explicit breakdown, so no additional adjustment.
- Hybrid debt portion: Deeply Subordinated Perpetual Notes in equity = 3,393M EUR, treat 50% as debt = 1,696.5M EUR for S&P.
- Leases: assume included in borrowings per IFRS 16, no separate add.

Subtract eligible surplus cash:
- Cash and cash equivalents: 15,570,000,000 EUR  
- Less minimum cash needs (assumed negligible here).

Adjusted Debt = 40,591M + 1,696.5M – 15,570M = 26,717,500,000 EUR.

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**Step 5 – Calculate FFO / Adjusted Debt**

= 12,664,000,000 / 26,717,500,000 = 0.4740

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<answer>0.4740</answer>