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Fair Value Measurements (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | $ 455.1 | $ 695.3
Total, inventories asset | 1.8 |
Derivative liability | 445.1 | 649.6
Total, inventories liability |  | 22.9
Debt | 884.4 | 689.9
Level 1 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Subtotal Assets | 194.0 | 173.7
Subtotal Liabilities | 311.2 | 306.4
Level 2 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Inventories asset | 1.8 |
Subtotal Assets | 263.9 | 519.6
Inventories liability |  | 22.9
Subtotal Liabilities | 133.8 | 364.8
Assets and liabilities measured at estimated fair value on a nonrecurring basis |  |
Fair value of inventory disposal group | 4.3 |
Level 3 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Subtotal Assets | 1.3 | 4.2
Subtotal Liabilities | 0.1 | 1.3
Assets and liabilities measured at estimated fair value on a nonrecurring basis |  |
Fair value of asset disposal group, excluding inventory | 34.1 |
Fair value of liability disposal group | 5.7 |
Cash surrender value of life insurance | Level 2 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Investments | 2.3 | 2.2
Fair value measured on recurring basis |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Inventories asset | 1.8 |
Subtotal Assets | 459.2 | 697.5
Netting and collateral, asset | (261.1) | (380.0)
Total Assets | 198.1 | 317.5
Inventories liability |  | 22.9
Subtotal Liabilities | 445.1 | 672.5
Netting and collateral, liability | (395.9) | (607.6)
Total Liabilities | 49.2 | 64.9
Fair value measured on recurring basis | Level 3 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Debt | 884.4 | 689.9
Notes receivable | 6.4 | 7.0
Fair value measured on recurring basis | Cash surrender value of life insurance |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Investments | 2.3 | 2.2
Commodity contracts |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Total, derivative asset | 189.3 | 305.5
Total, derivative liability | 48.4 | 42.0
Commodity contracts | Level 1 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 194.0 | 173.7
Derivative liability | 311.2 | 306.4
Commodity contracts | Level 2 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 249.1 | 495.6
Derivative liability | 127.0 | 329.9
Commodity contracts | Level 3 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 1.3 | 4.2
Derivative liability | 0.1 | 1.3
Commodity contracts | Fair value measured on recurring basis |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 444.4 | 673.5
Netting and collateral, derivative asset | (255.1) | (368.0)
Total, derivative asset | 189.3 | 305.5
Derivative liability | 438.3 | 637.6
Netting and collateral, derivative liability | (389.9) | (595.6)
Total, derivative liability | 48.4 | 42.0
Foreign currency contracts |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Total, derivative asset | 4.7 | 9.8
Total, derivative liability | 0.8 |
Foreign currency contracts | Level 2 |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 10.7 | 21.8
Derivative liability | 6.8 | 12.0
Foreign currency contracts | Fair value measured on recurring basis |  |
Assets and liabilities measured at estimated fair value on a recurring basis |  |
Derivative asset | 10.7 | 21.8
Netting and collateral, derivative asset | (6.0) | (12.0)
Total, derivative asset | 4.7 | 9.8
Derivative liability | 6.8 | 12.0
Netting and collateral, derivative liability | (6.0) | $ (12.0)
Total, derivative liability | $ 0.8 |

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