Derivative Cash Settlements Received - Commodity

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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- Definition

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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Aggregate net fair value of all derivative instruments designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

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Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

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Derivatives (Details-BS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Derivatives (Details-BS) - USD ($) $ in Millions	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Derivatives Fair Value [Line Items]
Derivative Cash Settlements Received - Commodity	$ 13	$ 2	$ 17	$ 24
Derivative Asset, Fair Value, Gross Asset	114		114		$ 68
Derivative Liability, Fair Value, Gross Liability	0		0		60
Derivative Asset, Fair Value, Net	114		114		8
Derivative, Gain (Loss) on Derivative, Net	56		137
Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	1		1		68
Derivative Instruments in Hedges, Liabilities, at Fair Value	0		0		0
Derivative Instruments in Hedges, at Fair Value, Net	1		1		68
Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	0		0		60
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	113		113		(60)
Derivative Liability, Fair Value, Gross Asset	113		113		0
Interest rate [Member] \| Other Noncurrent Assets [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	53		53
Derivative Asset, Fair Value, Gross Liability	0		0
Derivative Asset, Fair Value, Net	53		53
Commodity Contract [Member] \| Other Current Assets [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	57		57
Derivative Asset, Fair Value, Gross Liability	0		0
Derivative Asset, Fair Value, Net	57		57
Commodity Contract [Member] \| Other Noncurrent Assets [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	3		3
Derivative Asset, Fair Value, Gross Liability	0		0
Derivative Asset, Fair Value, Net	3		3
Commodity Contract [Member] \| Other Current Liabilities [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset					0
Derivative Asset, Fair Value, Gross Liability					60
Derivative Asset, Fair Value, Net					(60)
Fair Value Hedging [Member] \| Interest rate [Member] \| Other Current Assets [Member] \| Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1		1		3
Derivative Asset, Fair Value, Gross Liability	0		0		0
Derivative Asset, Fair Value, Net	$ 1		$ 1		3
Fair Value Hedging [Member] \| Interest rate [Member] \| Other Noncurrent Assets [Member] \| Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset					1
Derivative Asset, Fair Value, Gross Liability					0
Derivative Asset, Fair Value, Net					1
Cash Flow Hedging [Member] \| Interest rate [Member] \| Other Noncurrent Assets [Member] \| Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Derivative Asset, Fair Value, Net					64
Interest Rate Cash Flow Hedge Asset at Fair Value					64
Interest Rate Cash Flow Hedge Liability at Fair Value					$ 0