First, let's recall the S&P Global methodology for calculating the Net Debt / EBITDA ratio.  

- **EBITDA** = Operating Profit + Depreciation & Amortisation + Impairment Loss (if any) – Reversal of Impairment Loss.  
  According to the data:  
  - "Profit Loss From Operating Activities" (2022): 1,333,500,000 EUR  
  - "Depreciation Amortisation And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss" (2022): 725,700,000 EUR  
  So EBITDA ≈ 1,333.5 M + 725.7 M = 2,059.2 M EUR.

- **Net Debt** (S&P-style) usually includes:  
  Short-term borrowings + Current portion of long-term borrowings + Long-term borrowings – Cash and cash equivalents – Current financial assets (if liquid) and sometimes adjustment for derivatives.  
  Here:  
  - "Shortterm Borrowings" (2023-01-01): 444,100,000 EUR  
  - "Current Portion Of Longterm Borrowings" (2023-01-01): 1,909,300,000 EUR  
  - "Longterm Borrowings" (2023-01-01): 8,416,700,000 EUR  
  - "Cash And Cash Equivalents" (2023-01-01): 2,155,100,000 EUR  
  - "Current Financial Assets" (2023-01-01): 255,300,000 EUR  
  Net Debt ≈ (444.1 + 1,909.3 + 8,416.7) – (2,155.1 + 255.3) = 10,770.1 – 2,410.4 = 8,359.7 M EUR.

- Ratio = **8,359.7 / 2,059.2 ≈ 4.06**.

I’ll now put the final answer.

<answer>4.06</answer>