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Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION PLAN - NONVESTED SHARES (Details)

v3.10.0.1
STOCK-BASED COMPENSATION PLAN - NONVESTED SHARES (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Additional information Ìý Ìý Ìý
Value of share awards vested $ 24 $ 22 $ 16
Nonvested shares Ìý Ìý Ìý
Additional information Ìý Ìý Ìý
Total unrecognized compensation cost $ 19 Ìý Ìý
Weighted-average period over which cost is expected to be recognized (years) 1 year 8 months 12 days Ìý Ìý
Performance Awards Ìý Ìý Ìý
STOCK-BASED COMPENSATION PLAN Ìý Ìý Ìý
Weighted-average expected volatility rate 44.30% 45.00% 39.30%
Weighted-average risk-free interest rate (as a percent) 2.30% 1.50% 0.90%
Performance Awards | Maximum Ìý Ìý Ìý
Additional information Ìý Ìý Ìý
Performance period 3 years Ìý Ìý
Equity Awards Ìý Ìý Ìý
Shares Ìý Ìý Ìý
Nonvested at the beginning of the period (in shares) 2,457,000 Ìý Ìý
Granted (in shares) 435,000 Ìý Ìý
Vested (in shares) (840,000) Ìý Ìý
Forfeited (in shares) (129,000) Ìý Ìý
Nonvested at the end of the period (in shares) 1,923,000 2,457,000 Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) $ 14.93 Ìý Ìý
Granted (in dollars per share) 35.04 Ìý Ìý
Vested (in dollars per share) 15.67 Ìý Ìý
Forfeited (in dollars per share) 16.22 Ìý Ìý
Nonvested at the end of the period (in dollars per share) $ 19.08 $ 14.93 Ìý
Liability Awards Ìý Ìý Ìý
Shares Ìý Ìý Ìý
Nonvested at the beginning of the period (in shares) 696,000 Ìý Ìý
Granted (in shares) 169,000 Ìý Ìý
Vested (in shares) (337,000) Ìý Ìý
Forfeited (in shares) (24,000) Ìý Ìý
Nonvested at the end of the period (in shares) 504,000 696,000 Ìý
Weighted Average Grant-Date Fair Value Ìý Ìý Ìý
Nonvested at the beginning of the period (in dollars per share) $ 14.69 Ìý Ìý
Granted (in dollars per share) 32.77 Ìý Ìý
Vested (in dollars per share) 14.70 Ìý Ìý
Forfeited (in dollars per share) 16.66 Ìý Ìý
Nonvested at the end of the period (in dollars per share) $ 20.66 $ 14.69 Ìý
Restricted stock units Ìý Ìý Ìý
Shares Ìý Ìý Ìý
Vested (in shares) (15,922) Ìý Ìý
Additional information Ìý Ìý Ìý
Units vested but not yet issued 358,609 Ìý Ìý