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Derivatives - Effect on Income (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Gain (loss) on derivative |  |  |  |  |
Carrying Amount of Hedged Asset/(Liabilities) | $ 48,500,000 |  | $ 48,500,000 |  | $ 44,700,000
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset/(Liabilities) | 1,100,000 |  | 1,100,000 |  | (6,600,000)
Revenue | 9,459,400,000 | $ 10,150,800,000 | 18,138,200,000 | $ 19,332,200,000 |
Cost of Revenue | 9,190,800,000 | 9,904,700,000 | 17,618,500,000 | 18,842,600,000 |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Gain (Loss) recognized in earnings related to fair value or cash flow hedges excluded from assessment of hedge effectiveness | 0 | 0 | 0 | 0 |
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income | 20,100,000 | (3,700,000) | (4,000,000.0) | 1,300,000 |
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income | 23,300,000 | (10,200,000) | 11,100,000 | 4,500,000 |
Potential Collateral Requirements for Derivative Liabilities with Credit-Risk-Contingent Features |  |  |  |  |
Net derivatives liability positions with credit contingent features | 3,200,000 |  | 3,200,000 |  | 7,200,000
Maximum potential collateral requirements | 3,200,000 |  | 3,200,000 |  | 7,200,000
Collateral posted and held by our counterparties | 0 |  | 0 |  | $ 0
Revenue |  |  |  |  |
Gain (loss) on derivative |  |  |  |  |
Revenue | 9,459,400,000 | 10,150,800,000 | 18,138,200,000 | 19,332,200,000 |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Hedged Item | 0 | 0 | 0 | 0 |
Derivatives designated as hedging instruments | 0 | 0 | 0 | 0 |
Total amount of income and expense line items excluding the impact of hedges, Revenue | 9,461,900,000 | 10,171,200,000 | 18,144,500,000 | 19,356,100,000 |
Cost of revenue |  |  |  |  |
Gain (loss) on derivative |  |  |  |  |
Cost of Revenue | 9,190,800,000 | 9,904,700,000 | 17,618,500,000 | 18,842,600,000 |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Hedged Item | (900,000) | 11,300,000 | 15,400,000 | 16,700,000 |
Derivatives designated as hedging instruments | (600,000) | (10,900,000) | (14,100,000) | (16,500,000) |
Total amount of income and expense line items excluding the impact of hedges, Cost of Revenue | 9,215,100,000 | 9,915,200,000 | 17,637,200,000 | 18,871,200,000 |
Commodity contracts | Revenue |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income | 42,800,000 | (25,300,000) | (177,700,000) | (27,600,000) |
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income | (2,500,000) | (20,300,000) | (6,300,000) | (23,900,000) |
Commodity contracts | Cost of revenue |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income | (22,700,000) | 19,500,000 | 173,700,000 | 29,700,000 |
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income | 25,800,000 | 10,200,000 | 17,400,000 | 28,400,000 |
Foreign currency contracts | Other Income (expense) net |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income | 0 | 2,100,000 | 0 | (800,000) |
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income | 0 | 0 | 0 | 0 |
Derivatives not designated as hedging instruments |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | 11,100,000 | (2,700,000) | 20,600,000 | 4,500,000 |
Derivatives not designated as hedging instruments | Commodity contracts |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | 12,400,000 | (10,400,000) | 21,500,000 | 300,000 |
Derivatives not designated as hedging instruments | Commodity contracts | Revenue |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | 69,400,000 | (3,600,000) | 144,500,000 | 44,000,000.0 |
Derivatives not designated as hedging instruments | Commodity contracts | Cost of revenue |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | (57,100,000) | (6,800,000) | (123,000,000.0) | (43,800,000) |
Derivatives not designated as hedging instruments | Foreign currency contracts |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | (1,300,000) | 7,700,000 | (900,000) | 4,200,000 |
Derivatives not designated as hedging instruments | Foreign currency contracts | Revenue |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | 0 | 1,500,000 | (100,000) | 900,000 |
Derivatives not designated as hedging instruments | Foreign currency contracts | Other Income (expense) net |  |  |  |  |
Gains or Loss on fair value hedge relationships |  |  |  |  |
Amount of Realized and Unrealized Gain (Loss) | (1,300,000) | 6,200,000 | (800,000) | 3,400,000 |
Accumulated gain (loss), cash flow hedge, including noncontrolling interest | Reclassification out of AOCI | Revenue |  |  |  |  |
Gain (loss) on derivative |  |  |  |  |
Revenue | (2,500,000) | (20,300,000) | (6,300,000) | (23,900,000) |
Accumulated gain (loss), cash flow hedge, including noncontrolling interest | Reclassification out of AOCI | Cost of revenue |  |  |  |  |
Gain (loss) on derivative |  |  |  |  |
Cost of Revenue | $ 25,800,000 | $ 10,200,000 | $ 17,400,000 | $ 28,400,000 |

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