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

12 Months Ended

Dec. 31, 2021

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Investments

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

			December 31, 2021									December 31, 2020
(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			$	612		$	—					$	612		$	301		$	—					$	301
Investments			—			135						135			—			57						57
Restricted cash, cash equivalents and investments
Payroll funds collected			1,012			—						1,012			1,228			—						1,228
Collateral for health benefits claims			25			98						123			16			82						98
Collateral for workers' compensation claims			58			—						58			60			—						60
Other security deposits			2			—						2			2			—						2
Total restricted cash, cash equivalents and investments			1,097			98						1,195			1,306			82						1,388
Investments, noncurrent			—			168						168			—			138						138
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims			29			137						166			36			174						210
Total			$	1,738		$	538					$	2,276		$	1,643		$	451					$	2,094

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Tabular disclosure of the components of cash, cash equivalents, and investments.

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