Marketable and Other Securities

The following table summarizes the fair value of cash equivalents and marketable debt and equity securities which approximates cost:



	Fair Value Level	June 30, 2018		December 31, 2017
Cash and cash equivalents
Cash and time deposits(a)		$	7,248	$	6,962
Available-for-sale debt securities
U.S. government and agencies	2	1,307		750
Corporate debt	2	1,222		3,032
Sovereign debt	2	637		1,954
Total available-for-sale debt securities – cash equivalents		3,166		5,736
Money market funds	1	4,673		2,814
Total cash and cash equivalents		$	15,087	$	15,512
Marketable debt securities
U.S. government and agencies	2	$	2,028	$	3,310
Corporate debt	2	3,414		3,665
Mortgage and asset-backed	2	666		635
Sovereign debt	2	816		703
Total available-for-sale debt securities – marketable securities		$	6,924	$	8,313
Restricted cash
Cash and cash equivalents		$	205	$	219
Money market funds	1	2,479		2,117
Total restricted cash		$	2,684	$	2,336

Available-for-sale debt securities included above with contractual maturities(b)
Due in one year or less		$	4,741
Due between one and five years		4,683
Total available-for-sale debt securities with contractual maturities		$	9,424

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(a)	Includes $2.0 billion in GM Cruise Cash and cash equivalents and $361 million that is designated exclusively to fund capital expenditures in GM Korea Company (GM Korea). Refer to Note 17 for additional information.


(b)	Excludes mortgage and asset-backed securities.

Sales proceeds from investments classified as available-for-sale and sold prior to maturity were $1.0 billion and $750 million in the three months ended June 30, 2018 and 2017 and $2.0 billion and $1.4 billion in the six months ended June 30, 2018 and 2017. Net unrealized gains and losses on available-for-sale debt securities were insignificant in the three and six months ended June 30, 2018 and 2017. Cumulative unrealized gains and losses on available-for-sale debt securities were insignificant at June 30, 2018 and December 31, 2017.

Investments in equity securities where market quotations are not available are accounted for at fair value primarily using Level 3 inputs. We recorded an unrealized gain of $142 million in Interest income and other non-operating income, net in the three and six months ended June 30, 2018 to adjust an investment in an equity security to a fair value of $884 million at June 30, 2018.

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheet to the total shown in the condensed consolidated statement of cash flows:



	June 30, 2018
Cash and cash equivalents	$	15,087
Restricted cash included in Other current assets	2,153
Restricted cash included in Other assets	531
Total	$	17,771