First, we need to calculate EBITDA for 2022 under the S&P methodology.  

From the income statement:  
- **Revenue** (2022): 20,082,000,000 EUR  
- **Other Revenue** (2022): 548,200,000 EUR  
- **Raw Materials and Consumables Used** (2022): 16,730,000,000 EUR  
- **Services Expense** (2022): 2,105,800,000 EUR  
- **Employee Benefits Expense** (2022): 601,100,000 EUR  
- **Other Expense By Nature** (2022): 74,900,000 EUR  
- **Other Work Performed and Capitalised** (2022): 82,500,000 EUR (adds to income, reduces costs)  

Operating costs (excluding D&A) = Raw materials + Services + Employee benefits + Other expenses – Other work capitalised  
= 16,730,000,000 + 2,105,800,000 + 601,100,000 + 74,900,000 – 82,500,000  
= 19,429,300,000 EUR  

EBITDA = (Revenue + Other Revenue) – Operating costs  
= (20,082,000,000 + 548,200,000) – 19,429,300,000  
= 1,200,900,000 EUR  

Next, net debt under S&P methodology typically includes:  
- **Noncurrent Financial Liabilities**: 5,689,900,000 EUR  
- **Current Financial Liabilities**: 650,100,000 EUR  
- **Noncurrent Lease Liabilities**: 55,100,000 EUR  
- **Current Lease Liabilities**: 21,300,000 EUR  
Less:  
- **Cash and Cash Equivalents**: 1,942,400,000 EUR  
- **Current Financial Assets**: 77,700,000 EUR  
- **Noncurrent Financial Assets** (if liquid and available to repay debt, but usually excluded unless specified; here we exclude as they may not be cash equivalents).  

Net Debt = (5,689,900,000 + 650,100,000 + 55,100,000 + 21,300,000) – (1,942,400,000 + 77,700,000)  
= 6,416,400,000 – 2,020,100,000  
= 4,396,300,000 EUR  

Net Debt / EBITDA = 4,396,300,000 / 1,200,900,000 ≈ 3.66  

<answer>3.66</answer>