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Debt - Bank Credit Facilities Table (Details) (USD $)
In Millions, unless otherwise specified |
6 Months Ended |
|---|---|
|
Jun. 30, 2014
|
|
| Line of Credit Facility [Line Items] | |
| Number Of Credit Facilities | 2 |
|
Corporate Revolving Bank Credit Facility [Member]
|
|
| Line of Credit Facility [Line Items] | |
| Facility structure | Senior secured revolving |
| Maturity date | December 2015 |
| Borrowing capacity | $ 4,000 |
| Amount outstanding as of June 30, 2014 | 0 |
| Letters of credit outstanding as of June 30, 2014 | 20 |
|
Oilfield Services Revolving Bank Credit Facility [Member]
|
|
| Line of Credit Facility [Line Items] | |
| Facility structure | Senior secured revolving |
| Maturity date | November 2016 |
| Borrowing capacity | 500 |
| Amount outstanding as of June 30, 2014 | 0 |
| Letters of credit outstanding as of June 30, 2014 | $ 0 |