To estimate the FFO (Funds From Operations) / Net Debt ratio for 2022, we first determine the components based on the provided data for the period ending 2022-01-01 (which represents the 2022 fiscal year-end):

1.  **FFO (Funds From Operations):**
    FFO is typically calculated as Cash Flows from Operating Activities adjusted for certain non-cash or non-recurring items. Given the provided "Cash Flows from Used In Operating Activities" (1,260,000,000 EUR) and standard financial practices, we use this as the primary proxy.

2.  **Net Debt:**
    Net Debt is calculated as: (Total Financial Liabilities) - (Cash and Cash Equivalents).
    *   **Financial Liabilities:** The sum of "Other Noncurrent Financial Liabilities" (5,867,000,000 EUR) and "Other Current Financial Liabilities" (1,022,000,000 EUR) = 6,889,000,000 EUR.
    *   **Cash and Cash Equivalents:** 2,584,000,000 EUR.
    *   **Net Debt:** 6,889,000,000 - 2,584,000,000 = 4,305,000,000 EUR.

3.  **FFO / Net Debt Ratio:**
    *   Calculation: 1,260,000,000 / 4,305,000,000 ≈ 0.29268

Rounding the ratio to standard accounting precision: 0.2927

<answer>0.2927</answer>