| Metric | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| Total liabilities | $16.3B | $16.9B | $16.7B | $16.3B | $17.2B | $17.9B | $18.7B | $18.9B |
| Other non-current liabilities | $4.5B | $4.8B | $4.5B | $4.5B | $4.7B | $4.6B | $5.1B | $5.0B |
| Postretirement benefit obligations other than pensions | $360.0M | $357.0M | $336.0M | $333.0M | $302.0M | $301.0M | $314.0M | $311.0M |
| Other Pension and Postretirement Benefit Liabilities | $360.0M | $357.0M | $336.0M | $333.0M | $302.0M | $301.0M | $314.0M | $311.0M |
| Finance lease liabilities | — | — | $144.0M | — | — | $869.0M | $1.1B | $149.0M |