Cash, Cash Equivalents and Investments - (Tables)

3 Months Ended

Mar. 31, 2020

Cash and Cash Equivalents [Abstract]

Summary of Cash, Cash Equivalents and Investments

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

	March 31, 2020								December 31, 2019
(in millions)	Cash and cash equivalents		Available-for-sale marketable securities		Certificate of deposits		Total		Cash and cash equivalents		Available-for-sale marketable securities		Certificate of deposits		Total
Cash and cash equivalents	$	521	$	—	$	—	$	521	$	213	$	—	$	—	$	213
Investments	—		65		—		65		—		68		—		68
Restricted cash, cash equivalents and investments:
Payroll funds collected	611		—		—		611		1,018		—		—		1,018
Collateral for health benefits claims	27		76		—		103		98		—		—		98
Collateral for workers' compensation claims	63		—		—		63		62		—		—		62
Other security deposits	2		—		—		2		2		—		—		2
Total restricted cash, cash equivalents and investments	703		76		—		779		1,180		—		—		1,180
Investments, noncurrent	—		130		—		130		—		125		—		125
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	41		162		1		204		63		148		1		212
Total	$	1,265	$	433	$	1	$	1,699	$	1,456	$	341	$	1	$	1,798