Stock Compensation Plans (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2014
|
Jun. 30, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Allocated Share-based Compensation Expense | $ 9 | $ 12 | $ 19 | $ 22 |
Tax benefit | (2) | (4) | (6) | (7) |
Total stock-based compensation (net of tax) | 7 | 8 | 13 | 15 |
Restricted Stock Units (RSUs) [Member]
|
||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Allocated Share-based Compensation Expense | 9 | 12 | 19 | 21 |
Total unrecognized compensation cost related to unvested awards | 83 | 83 | ||
Total unrecognized compensation cost related to unvested awards, period for recognition (in years) | 1 year 3 months 18 days | |||
Employee Stock Option [Member]
|
||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Allocated Share-based Compensation Expense | $ 0 | $ 0 | $ 0 | $ 1 |