EQUITY - SHARE REPURCHASE PROGRAM (DETAILS) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 14 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Mar. 31, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
May 31, 2015 |
|
| Equity Disclosures | ||||||
| Repurchase of common shares for the period | $ 200 | $ 200 | ||||
| Common Shares | ||||||
| Equity Disclosures | ||||||
| Authorized amount of issued and outstanding common shares available for repurchase | $ 975 | $ 500 | ||||
| Repurchase of common shares (in shares) | 330,881 | 2,460,600 | 3,296,230 | 4,707,440 | ||
| Repurchase of common shares for the period | $ 19 | $ 200 | $ 200 | $ 300 | ||