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ACCRUED WORKERS' COMPENSATION COSTS (Tables)
12 Months Ended
Dec. 31, 2021
Insurance [Abstract]  
Summary of Activities for Unpaid Claims, Claims Adjustment Expenses and Workers' Compensation Liabilities
The following table summarizes the accrued workers’ compensation cost activity for the years ended December 31, 2021, 2020 and 2019:
Year Ended December 31,
(in millions)202120202019
Total accrued costs, beginning of year$205 $214 $238 
Incurred
Current year66 64 72 
Prior years(23)(20)(31)
Total incurred43 44 41 
Paid
Current year(10)(8)(14)
Prior years(40)(45)(51)
Total paid(50)(53)(65)
Total accrued costs, end of year$198 $205 $214 
The following tables summarize workers' compensation liabilities on the consolidated balance sheets:
(in millions)December 31, 2021December 31, 2020
Total accrued costs, end of year$198 $205 
Collateral paid to carriers and offset against accrued costs(8)(8)
Total accrued costs, net of carrier collateral offset$190 $197 
Payable in less than 1 year
(net of collateral paid to carriers of $2 and $3 as of December 31, 2021 and 2020, respectively)
$55 59
Payable in more than 1 year
(net of collateral paid to carriers of $6 and $5 as of December 31, 2021 and 2020, respectively)
135 138 
Total accrued costs, net of carrier collateral offset$190 $197