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RETIREMENT BENEFIT PLANS (Tables)
12 Months Ended
Dec. 31, 2020
Employee Benefits [Abstract]  
Disclosure of defined benefit plans
US$ MILLIONS20202019
Plan assets$833 $686 
Less accrued benefit obligation(1,164)(851)
Accrued benefit liability (1)
$(331)$(165)
(1)Primarily presented within Other liabilities’ of the consolidated statements of financial position. Refer to Note 17, Accounts Payable and Other for further details