| Net Income | 21.61 | 26.92 | 70.37 | 110.35 | 85.43 | 69.5 | |
| Depreciation & Amortization | 117.31 | 118.54 | 123.89 | 117.62 | 109 | 109.47 | |
| Loss (Gain) From Sale of Assets | -5.47 | -4.97 | -13.61 | -13.38 | -16.3 | -10.45 | |
| Stock-Based Compensation | 2.29 | 2.24 | 2.32 | 2.81 | 2.52 | 1.85 | |
| Other Operating Activities | -13.12 | -15.43 | -14.58 | 11.88 | 4.07 | -0.92 | |
| Change in Accounts Receivable | 10.24 | 19.83 | 12.75 | -23.55 | -16.75 | 12.73 | |
| Change in Accounts Payable | -2.35 | -2.44 | -3.62 | 11.89 | -0.82 | 0.88 | |
| Change in Other Net Operating Assets | -5.19 | -9.88 | -13.15 | 1.86 | 4.06 | 6.55 | |
| Operating Cash Flow | 125.31 | 134.81 | 164.38 | 219.49 | 171.2 | 189.6 | |
| Operating Cash Flow Growth | -22.11% | -17.98% | -25.11% | 28.20% | -9.70% | 21.18% | |
| Capital Expenditures | -221.79 | -233.23 | -240.56 | -176.62 | -199.29 | -173.05 | |
| Sale of Property, Plant & Equipment | 81.54 | 81.14 | 68.06 | 41.7 | 75.6 | 66.77 | |
| Other Investing Activities | -0.05 | -0.05 | -0.05 | -0.04 | -0.04 | -0.04 | |
| Investing Cash Flow | -140.3 | -152.14 | -172.54 | -134.96 | -123.73 | -106.33 | |
| Issuance of Common Stock | 1 | 1.3 | 1.21 | 2 | 0.88 | 4.79 | |
| Repurchase of Common Stock | -0.28 | -0.38 | -0.93 | -43.36 | -2.74 | -1.03 | |
| Common Dividends Paid | -19.55 | -19.54 | -19.51 | -19.56 | -13.27 | -11.07 | |
| Financing Cash Flow | -18.83 | -18.62 | -19.23 | -60.93 | -56.6 | -48.61 | |
| Net Cash Flow | -33.83 | -35.95 | -27.39 | 23.61 | -9.13 | 34.67 | |
| Free Cash Flow | -96.48 | -98.42 | -76.18 | 42.87 | -28.09 | 16.55 | |
| Free Cash Flow Margin | -10.29% | -10.21% | -6.73% | 3.39% | -2.89% | 1.89% | |
| Free Cash Flow Per Share | -1.18 | -1.21 | -0.94 | 0.52 | -0.34 | 0.20 | |
| Cash Interest Paid | - | - | 0.01 | 0.07 | - | - | |
| Cash Income Tax Paid | 19.17 | 19.17 | 36.98 | 23.65 | 21.72 | 17.98 | |
| Levered Free Cash Flow | -73.04 | -89.42 | -68.7 | 30.45 | -44.56 | 16.68 | |
| Unlevered Free Cash Flow | -73.04 | -89.42 | -68.7 | 30.45 | -44.56 | 16.68 | |
| Change in Net Working Capital | -15.8 | -5.37 | 2.16 | -5.41 | 16.4 | -26.66 | |