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