Other Liabilities, Short-Term Table (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Other Liabilities, Current [Abstract]
Revenues and royalties due others	$ 1,621	$ 1,337
Accrued natural gas, oil and NGL drilling and production costs	417	525
Joint interest prepayments received	472	749
Accrued compensation and benefits	276	225
Accrued Liabilities for Commissions, Expense and Taxes	178	130
Accrued dividends	102	101
Other	559	674
Total other current liabilities	$ 3,625	$ 3,741

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

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