Supplemental Cash Flow Information (Net Changes In Components Of Operating Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Supplemental Cash Flow Elements [Abstract]
(Increase) decrease in Accounts receivable	$ 60,046	$ (85,915)
(Increase) decrease in Inventories	(11,700)	7,947
(Increase) decrease in Other current assets	41,623	4,736
Increase (decrease) in Accounts payable	(1,867)	57,048
Increase (decrease) in Accrued liabilities	(35,184)	6,019
Net changes in components of operating assets and liabilities	$ 52,918	$ (10,165)

The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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Balance Type:	debit
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- Definition

The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

+ References

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- Definition

The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.

+ References

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- Definition

The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

+ References

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- Definition

The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

+ References

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- Definition

The increase (decrease) during the reporting period in other current operating assets not separately disclosed in the statement of cash flows.

+ References

No definition available.

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