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Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION PLAN - NONVESTED SHARES (Details)

v3.7.0.1
STOCK-BASED COMPENSATION PLAN - NONVESTED SHARES (Details)
$ / shares in Units, $ in Millions
6 Months Ended
Jun. 30, 2017
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
Performance Awards Ìý Ìý
STOCK-BASED COMPENSATION PLAN Ìý Ìý
Weighted-average volatility rate 45.00% 39.30%
Risk-free interest rate (as a percent) 1.50% 0.90%
Performance Awards | Maximum Ìý Ìý
Additional information Ìý Ìý
Performance period 3 years 3 years
Equity Awards Ìý Ìý
Shares Ìý Ìý
Nonvested at the beginning of the period (in shares) 2,996,000 Ìý
Granted (in shares) 779,000 Ìý
Vested (in shares) (903,000) Ìý
Forfeited (in shares) (15,000) Ìý
Nonvested at the end of the period (in shares) 2,857,000 Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) | $ / shares $ 13.36 Ìý
Granted (in dollars per share) | $ / shares 22.60 Ìý
Vested (in dollars per share) | $ / shares 16.23 Ìý
Forfeited (in dollars per share) | $ / shares 15.63 Ìý
Nonvested at the end of the period (in dollars per share) | $ / shares $ 14.97 Ìý
Liability Awards Ìý Ìý
Shares Ìý Ìý
Nonvested at the beginning of the period (in shares) 912,000 Ìý
Granted (in shares) 285,000 Ìý
Vested (in shares) (366,000) Ìý
Forfeited (in shares) (28,000) Ìý
Nonvested at the end of the period (in shares) 803,000 Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) | $ / shares $ 12.27 Ìý
Granted (in dollars per share) | $ / shares 21.01 Ìý
Vested (in dollars per share) | $ / shares 14.07 Ìý
Forfeited (in dollars per share) | $ / shares 12.48 Ìý
Nonvested at the end of the period (in dollars per share) | $ / shares $ 14.55 Ìý
Restricted stock units Ìý Ìý
Shares Ìý Ìý
Vested (in shares) (25,704) Ìý
Additional information Ìý Ìý
Units vested but not yet issued 480,604 Ìý
Nonvested shares Ìý Ìý
Additional information Ìý Ìý
Total unrecognized compensation cost | $ $ 42 Ìý
Weighted-average period over which cost is expected to be recognized 2 years Ìý
Value of share awards vested | $ $ 20 $ 15