**Reasoning**

1. **Funds from operations (FFO)** is approximated by adjusting net profit for non‑cash items:
   - Net profit (profit loss) = 2,920 M €
   - Add back depreciation, amortisation and impairment loss reversal = 7,447 M €
   - Subtract the impairment loss reversal on trade receivables (non‑cash gain) = 1,278 M €
   - Subtract other non‑cash income (Other Adjustments for Non‑cash Items) = 927 M €
   - Subtract the gain on disposal of non‑current assets = 355 M €
   - Subtract the equity‑method undistributed profit (non‑cash) = 23 M €
   - Share‑based compensation is already reflected in net profit, so no further adjustment is needed.

   This yields  
   **FFO ≈ 2,920 + 7,447 – 1,278 – 927 – 355 – 23 ≈ 7,784 M €**.

2. **Net debt** is defined as total interest‑bearing borrowings minus cash and cash equivalents:
   - Long‑term borrowings = 68,191 M €
   - Short‑term borrowings = 18,392 M €
   - Current portion of long‑term borrowings = 2,835 M €
   - Total borrowings = 68,191 + 18,392 + 2,835 = 89,418 M €
   - Cash and cash equivalents (including short‑term investments classified as cash equivalents) = 11,041 + 78 = 11,119 M €
   - **Net debt ≈ 89,418 – 11,119 ≈ 78,299 M €**.

3. **FFO / Net debt ratio** = 7,784 M € / 78,299 M € ≈ 0.099 ≈ 0.10.

**Final answer**

<answer>0.10</answer>