
(US$ in millions)	March 31, 2021		December 31, 2020
Unrealized gains on derivative contracts, at fair value	$	3,250	$	3,555
Prepaid commodity purchase contracts (1)	175		174
Secured advances to suppliers, net (2)	326		380
Recoverable taxes, net	354		385
Margin deposits	532		817
Marketable securities, at fair value, and other short-term investments	351		346
Deferred purchase price receivable(3)	235		177
Income taxes receivable	10		27
Prepaid expenses	296		231
Other	236		176
Total	$	5,765	$	6,268

(1) Prepaid commodity purchase contracts represent advance payments against contracts for future deliveries of specified quantities of agricultural commodities.

(2) The Company provides cash advances to suppliers, primarily Brazilian farmers of soybeans, to finance a portion of the suppliers’ production costs. The Company does not bear any of the costs or operational risks associated with the related growing crops. The advances are largely collateralized by future crops and physical assets of the suppliers, carry a local market interest rate, and settle when the farmers' crops are harvested and sold. The secured advances to farmers are reported net of allowances of $3 million at March 31, 2021 and $2 million at December 31, 2020.

Interest earned on secured advances to suppliers of $9 million and $12 million for the three months ended March 31, 2021 and 2020, respectively, is included in Net sales in the condensed consolidated statements of income.

(3) Deferred purchase price receivable represents additional credit support for the investment conduits in the Company’s trade receivables securitization program (see Note 5- Trade Accounts Receivable and Trade Receivable Securitization Program).

Marketable Securities and Other Short-Term Investments - The Company invests in foreign government securities, corporate debt securities, deposits, equity securities, and other securities. The following is a summary of amounts recorded in the Company's condensed consolidated balance sheets as marketable securities and other short-term investments.


(US$ in millions)	March 31, 2021		December 31, 2020
Foreign government securities	$	190	$	207
Corporate debt securities	137		136


Other	24		3
Total	$	351	$	346

As of March 31, 2021 and December 31, 2020, $327 million and $343 million, respectively, of marketable securities and other short-term investments are recorded at fair value. All other investments are recorded at cost, and due to the short-term nature of these investments, their carrying values approximate their fair values. For the three months ended March 31, 2021 and 2020, unrealized losses of $6 million and $16 million, respectively, have been recorded and recognized in Other income (expense) - net for investments held at March 31, 2021 and 2020.