CASH, CASH EQUIVALENTS AND INVESTMENTS - UNRESTRICTED AND RESTRICTED (Tables)

9 Months Ended

Sep. 30, 2023

Cash and Cash Equivalents [Abstract]

Schedule of Cash, Cash Equivalents and Investments

Our total cash, cash equivalents and investments are summarized below:

	September 30, 2023						December 31, 2022
(in millions)	Cash and cash equivalents		Available-for-sale marketable securities		Total		Cash and cash equivalents		Available-for-sale marketable securities		Total
Cash and cash equivalents	$	170	$	—	$	170	$	354	$	—	$	354
Investments	—		75		75		—		76		76
Restricted cash, cash equivalents and investments:
Payroll funds collected	635		—		635		1,062		—		1,062
Collateral for health benefits claims	31		110		141		29		110		139
Collateral for workers' compensation claims	55		—		55		58		—		58
Other security deposits	2		—		2		4		—		4
Total restricted cash, cash equivalents and investments	723		110		833		1,153		110		1,263
Investments, noncurrent	—		143		143		—		151		151
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	21		133		154		27		123		150
Other security deposits	—				—		3		—		3
Total	$	914	$	461	$	1,375	$	1,537	$	460	$	1,997