To estimate the FFO/Net Debt ratio for 2022 based on S&P methodology, we follow these steps:

1.  **Calculate FFO (Funds From Operations):**
    S&P typically defines FFO as Cash Flow from Operations (CFO) adjusted for working capital changes.
    *   Cash Flows from Operating Activities (2022): 1,002,000,000 EUR
    *   Increase/Decrease in Working Capital (2022): 83,000,000 EUR
    *   *Note:* S&P FFO usually removes the working capital impact from the reported CFO to reflect core recurring cash flow.
    *   FFO = 1,002,000,000 - 83,000,000 = 919,000,000 EUR

2.  **Calculate Net Debt:**
    Net Debt is calculated as Total Debt minus Cash and Cash Equivalents.
    *   Total Borrowings (Current + Noncurrent): 
        *   Noncurrent: 10,776,000,000 EUR
        *   Current: 877,000,000 EUR
        *   Total Gross Debt: 11,653,000,000 EUR
    *   Cash and Cash Equivalents: 5,130,000,000 EUR
    *   Net Debt = 11,653,000,000 - 5,130,000,000 = 6,523,000,000 EUR

3.  **Calculate FFO / Net Debt Ratio:**
    *   Ratio = FFO / Net Debt
    *   Ratio = 919,000,000 / 6,523,000,000 ≈ 0.140886

Rounding to the standard representation for such financial ratios:

<answer>0.1409</answer>