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RETIREMENT BENEFIT PLANS (Tables)
3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Schedule of net benefit (income) costs
The components of net periodic benefit (income) cost recorded in the Condensed Consolidated Statements of Operations are as follows:
 Pension benefitsOther postretirement
employee benefits
(in millions)20212020
Three Months Ended March 31,USNon-USUSNon-US20212020
Service cost$— $$— $$— $— 
Interest cost— 
Expected return on plan assets(3)(21)(3)(6)— — 
Amortization of unrecognized prior service credit— — — — — (1)
Amortization of unrecognized loss— — 
Net periodic benefit (income) cost$(1)$(4)$(1)$$— $—