|
Impairments (Details) (Assets Held for Sale, USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
|
|
Assets Held for Sale
|
|||
| Assets held for sale | |||
| Aggregate loss on impairment of assets held for sale | $ 37 | $ 65 | $ 37 |
| Aggregate loss on impairment of assets per diluted share | $ 0.10 | $ 0.19 | $ 0.10 |
| Aggregate loss on impairment of assets held for sale, tax effect | $ 0 | $ 0 | $ 0 |