Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT (5.375% Senior Notes) (Details)

v3.3.1.900
LONG-TERM DEBT (5.375% Senior Notes) (Details) - 5.375% Senior Notes due 2022 [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
May. 31, 2014
Debt Instrument [Line Items]    
Face amount   $ 250
Interest rate, stated percentage 5.375% 5.375%
Prior to June 15, 2017 [Member]    
Debt Instrument [Line Items]    
Redemption price, percentage 100.00%  
Redemption, Equity Offering [Member]    
Debt Instrument [Line Items]    
Redemption price, percentage 105.375%  
Percentage of notes which may be redeemed 35.00%  
After June 15, 2017 [Member]    
Debt Instrument [Line Items]    
Redemption price, percentage 104.0313%  
Redemption, Defined Changes of Control [Member]    
Debt Instrument [Line Items]    
Redemption price, percentage 101.00%