Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Narrative) (Details)

v3.10.0.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Narrative) (Details) - USD ($)
 12 Months Ended
Jan. 01, 2019
Oct. 12, 2018
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Term Of Agreement   4 years    
401(k) contribution match     $ 0.50  
Defined Benefit Plan, Accumulated Benefit Obligation     896,800,000 $ 963,000,000
Reserve for investment commitments     44,200,000  
Early Termination Fees for Pension Benefits     22,100,000  
Early Termination Fees for Other Postretirement Benefits     $ 3,400,000  
Structured Finance [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Redemption request notice period, days     90 days  
Real Estate [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Redemption request notice period, days     45 days  
Withdrawal request notice period, days     65 days  
Pension Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Decrease in Projected Benefit Obligation due to Market Conditions     $ 75,700,000 (46,100,000)
Increase in Projected Benefit Obligation due to new mortality tables     (21,700,000) 6,100,000
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)     (57,000,000) 54,600,000
Other Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Plan Assets, Contributions by Plan Participants     5,600,000 4,600,000
Decrease in Projected Benefit Obligation due to Market Conditions     19,000,000 (12,600,000)
Increase in Projected Benefit Obligation due to new mortality tables     (2,300,000) 1,900,000
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)     (29,400,000) $ 7,400,000
Prior To Age65 [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Annual limit on medical coverage for each participant     7,000  
Subsequent Event [Member]        
Defined Benefit Plan Disclosure [Line Items]        
401(k) contribution match $ 0.60      
Adoption of New Projection Scale [Member] | Pension Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Increase in Projected Benefit Obligation due to new mortality tables     3,000,000  
Adoption of New Projection Scale [Member] | Other Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Increase in Projected Benefit Obligation due to new mortality tables     800,000  
Update Assumption per Capita Cost [Member] | Other Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Increase in Projected Benefit Obligation due to new mortality tables     $ 11,900,000