|
Subsequent Events (Details) (Subsequent Event, USD $)
In Millions, unless otherwise specified |
2 Months Ended |
|---|---|
|
Feb. 26, 2014
|
|
|
ADDCL
|
|
| Subsequent events | |
| Borrowings repaid | $ 163 |
|
Drilling Technology International Limited
|
|
| Subsequent events | |
| Working capital line of credit to the buyer | 15 |
| Limited guarantee provided in favor of number of customer through expiration of the current drilling project | 1 |
|
Drilling Technology International Limited | Maximum
|
|
| Subsequent events | |
| Working capital line of credit to the buyer, period | 2 years |
|
2010 and 2011 federal income tax returns
|
|
| Subsequent events | |
| Net adjustments of additional taxes, excluding interest and penalties, related to assessments on 2010 and 2011 U.S. federal income tax returns | $ 290 |