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

3 Months Ended

Mar. 31, 2023

Cash and Cash Equivalents [Abstract]

Schedule of Cash, Cash Equivalents and Investments

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

	March 31, 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	$	707	$	—	$	707	$	354	$	—	$	354
Investments	—		89		89		—		76		76
Restricted cash, cash equivalents and investments:
Payroll funds collected	813		—		813		1,062		—		1,062
Collateral for health benefits claims	30		111		141		29		110		139
Collateral for workers' compensation claims	58		—		58		58		—		58
Other security deposits	4		—		4		4		—		4
Total restricted cash, cash equivalents and investments	905		111		1,016		1,153		110		1,263
Investments, noncurrent	—		142		142		—		151		151
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	23		130		153		27		123		150
Other security deposits	2		—		2		3		—		3
Total	$	1,637	$	472	$	2,109	$	1,537	$	460	$	1,997