Accrued Workers' Compensation Cost (Tables)

3 Months Ended

Mar. 31, 2019

Insurance [Abstract]

Summary of Activities in Liability for Unpaid Claims and Claims Adjustment Expenses

The following table summarizes the accrued workers’ compensation cost activity for the three months ended March 31, 2019 and 2018:

	Three Months Ended March 31,
(in millions)	2019			2018
Total accrued costs, beginning of period	$	238		$	255
Incurred
Current year	19			20
Prior years	(5		)	(7		)
Total incurred	14			13
Paid
Current year	(1		)	—
Prior years	(15		)	(18		)
Total paid	(16		)	(18		)
Total accrued costs, end of period	$	236		$	250

The following summarizes workers' compensation liabilities on the condensed consolidated balance sheets:

(in millions)	March 31, 2019			December 31, 2018
Total accrued costs, end of period	$	236		$	238
Collateral paid to carriers and offset against accrued costs	(13		)	(13		)
Total accrued costs, net of carrier collateral offset	$	223		$	225
Payable in less than 1 year (net of collateral paid to carriers of $4 and $3 at March 31, 2019 and December 31, 2018, respectively)	$	67		$	67
Payable in more than 1 year (net of collateral paid to carriers of $9 and $10 at March 31, 2019 and December 31, 2018, respectively)	156			158
Total accrued costs, net of carrier collateral offset	$	223		$	225