SHORT-TERM DEBT Credit Facility (Details) - USD ($) $ in Millions |
Sep. 15, 2014 |
Apr. 30, 2016 |
Jun. 09, 2015 |
|---|---|---|---|
| Line of Credit Facility | |||
| Credit facility limit increase | $ 300 | ||
| Amount outstanding on credit facility | $ 235 | ||
| Line of Credit | |||
| Line of Credit Facility | |||
| Initiation date of credit facility | Sep. 15, 2014 | ||
| Expiration date of credit facility | Sep. 15, 2019 | ||
| Credit faciity terms (in years) | five | ||
| Initial maximum borrowing capacity of credit facility | $ 400 | ||
| New maximum borrowing capacity of credit facility | $ 700 |