v3.7.0.1

Assets and Liabilities with Recurring Fair Value Measurements Fair Value Hierarchy (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash equivalents | [1] | $ 128 | $ 153
Commodity futures contracts |  | 932 | 1,542
Commodity forward contracts | [2] | 636 | 697
Interest Rate Derivative Assets, Fair Value |  | 21 | 29
Total assets |  | 1,717 | 2,421
Commodity futures contracts |  | 975 | 1,570
Commodity forward contracts | [2] | 418 | 478
Interest Rate Derivative Liabilities At Fair Value |  | 57 | 58
Liabilities, Fair Value Disclosure |  | 1,450 | 2,106
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash equivalents | [1] | 128 | 153
Commodity futures contracts |  | 932 | 1,542
Commodity forward contracts | [2] | 0 | 0
Interest Rate Derivative Assets, Fair Value |  | 0 | 0
Total assets |  | 1,060 | 1,695
Commodity futures contracts |  | 975 | 1,570
Commodity forward contracts | [2] | 0 | 0
Interest Rate Derivative Liabilities At Fair Value |  | 0 | 0
Liabilities, Fair Value Disclosure |  | 975 | 1,570
Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash equivalents | [1] | 0 | 0
Commodity futures contracts |  | 0 | 0
Commodity forward contracts | [2] | 285 | 231
Interest Rate Derivative Assets, Fair Value |  | 21 | 29
Total assets |  | 306 | 260
Commodity futures contracts |  | 0 | 0
Commodity forward contracts | [2] | 361 | 411
Interest Rate Derivative Liabilities At Fair Value |  | 57 | 58
Liabilities, Fair Value Disclosure |  | 418 | 469
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash equivalents | [1] | 0 | 0
Commodity futures contracts |  | 0 | 0
Commodity forward contracts | [2] | 351 | 466
Interest Rate Derivative Assets, Fair Value |  | 0 | 0
Total assets |  | 351 | 466
Commodity futures contracts |  | 0 | 0
Commodity forward contracts | [2] | 57 | 67
Interest Rate Derivative Liabilities At Fair Value |  | 0 | 0
Liabilities, Fair Value Disclosure |  | $ 57 | $ 67
[1] | As of June 30, 2017 and December 31, 2016, we had cash equivalents of $29 million and $26 million included in cash and cash equivalents and $99 million and $127 million included in restricted cash, respectively.
[2] | Includes OTC swaps and options and retail contracts.

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