Based on the provided financial facts and S&P industry classification methodologies, Veolia Environnement is assessed as **Strongly Suitable** for the issuance of hybrid bonds. 

**Reasoning:**
1. **Industry Profile and Cash Flow Visibility:** Veolia is a major global utility and infrastructure-like company operating in water, waste management, and energy services. The S&P methodology highlights that regulated utilities typically benefit from predictable, highly visible cash flows and supportive regulatory frameworks. This is a core criterion for strong suitability, as stable operating cash flows significantly mitigate the risk of coupon deferrals on subordinated instruments.
2. **Established Track Record with Hybrids & M&A Rationale:** The financial data clearly demonstrates that Veolia is already a frequent and active issuer of hybrid capital. The balance of its "Titres Super Subordonnés à Durée Indéterminée" (Deeply Subordinated Securities) increased materially from €2.46 billion to €3.50 billion over the year. This jump was primarily driven by its massive acquisition of Suez (noted by the €1.62 billion "Contribution Of Hybrid Debt Suez SA"). This perfectly aligns with the criterion of using hybrids for strong M&A funding rationales and preserving rating headroom. 
3. **Active Refinancing Needs:** The cash flow statement shows the company actively manages its hybrid stack, as seen in the "Payment Of Hybrid Debt Deeply Subordinated Securities" of -€500 million alongside regular "Coupons On Deeply Subordinated Securities" payments of -€88.3 million. An issuer with an existing hybrid portfolio will routinely need to issue new hybrids to refinance older ones approaching their first call dates.
4. **Credit Profile & Leverage:** The company's total reported financial liabilities grew significantly (non-current rising from €10.46 billion to €19.69 billion) due to the Suez acquisition, placing upward pressure on leverage. In the BBB rating category—where Veolia typically sits—S&P accords 50% equity credit to hybrid bonds. Thus, hybrid issuance remains a highly effective and necessary tool for Veolia to support its enlarged capital structure, defend its credit rating, and improve its adjusted FFO-to-debt metrics.

<answer>Strongly Suitable</answer>