Note 21—Financial Instruments

The carrying amounts and fair values of our financial instruments were as follows:

	December 31, 2013				December 31, 2012
	Carrying amount		Fair value		Carrying amount		Fair value
Cash and cash equivalents	$	3,243	$	3,243	$	5,134	$	5,134
Notes and other loans receivable	101		101		142		142
Preference shares	—		—		196		196
Restricted cash investments	624		649		861		903
Long-term debt, including current maturities	10,539		11,621		12,268		13,899
Long-term debt of consolidated variable interest entities, including current maturities	163		163		191		191
Derivative instruments, assets	—		—		8		8
Derivative instruments, liabilities	—		—		15		15

We estimated the fair value of each class of financial instruments, for which estimating fair value is practicable, by applying the following methods and assumptions:

Cash and cash equivalents—The carrying amount of cash and cash equivalents represents the historical cost, plus accrued interest, which approximates fair value because of the short maturities of those instruments. We measured the estimated fair value of our cash equivalents using significant other observable inputs, representative of a Level 2 fair value measurement, including the net asset values of the investments. At December 31, 2013 and 2012, the aggregate carrying amount of our cash equivalents was $2.3 billion and $4.2 billion, respectively.

Notes and other loans receivable—We hold certain notes and other loans receivable, which originated in connection with certain asset dispositions and supplier advances. The carrying amount represents the amortized cost of our investments. We measured the estimated fair value using significant unobservable inputs, representative of a Level 3 fair value measurement, including the credit ratings of the borrowers. At December 31, 2013, the aggregate carrying amount of our notes receivable and other loans receivable was $101 million, including $6 million and $95 million recorded in other current assets and other assets, respectively. At December 31, 2012, the aggregate carrying amount of our notes receivable and other loans receivable was $142 million, including $35 million and $107 million, recorded in other current assets and other assets, respectively.

Preference shares—We held preference shares of one of Shelf Drilling’s parent companies. The carrying amount of the preference shares represents the historical cost of our investment, as the preference shares do not have a readily determinable fair value. We measured the estimated fair value of the Shelf Drilling preference shares using significant unobservable inputs, representative of a Level 3 fair value measurement, including the credit ratings and financial position of the investee. At December 31, 2012, the aggregate carrying amount of the preference shares, excluding the balance associated with the embedded derivatives, was $196 million recorded in other assets. In June 2013, we sold the preference shares to an unaffiliated party for cash proceeds of $185 million.

Restricted cash investments—The carrying amount of the Eksportfinans Restricted Cash Investments represents the amortized cost of our investment. We measured the estimated fair value of the Eksportfinans Restricted Cash Investments using significant other observable inputs, representative of a Level 2 fair value measurement, including the terms and credit spreads of the instruments. At December 31, 2013 and 2012, the aggregate carrying amount of the Eksportfinans Restricted Cash Investments was $594 million and $801 million, respectively. At December 31, 2013 and 2012, the estimated fair value of the Eksportfinans Restricted Cash Investments was $619 million and $843 million, respectively.

The carrying amount of the restricted cash investments for the TPDI Credit Facilities, the ADDCL Credit Facilities and other obligations approximates fair value due to the short term nature of the instruments in which the restricted cash investments are held. At December 31, 2013, the aggregate carrying amount of the restricted cash investments for the ADDCL Credit Facilities and other obligations was $30 million. At December 31, 2012, the aggregate carrying amount of the restricted cash investments for the TPDI Credit Facilities, the ADDCL Credit Facilities and other obligations was $60 million.

Debt—We measured the estimated fair value of our fixed-rate debt using significant other observable inputs, representative of a Level 2 fair value measurement, including the terms and credit spreads for the instruments. At December 31, 2013 and 2012, the aggregate carrying amount of our fixed-rate debt was $10.5 billion and $11.7 billion, respectively. At December 31, 2013 and 2012, the aggregate estimated fair value of our fixed-rate debt was $11.6 billion and $13.3 billion, respectively.

The carrying amount of our variable-rate debt approximates fair value because the terms of those debt instruments include short-term interest rates and exclude penalties for prepayment. We measured the estimated fair value of our variable-rate debt using significant other observable inputs, representative of a Level 2 fair value measurement, including the terms and credit spreads for the instruments. At December 31, 2013, we did not have any variable-rate debt. At December 31, 2012, the aggregate carrying amount of our variable-rate debt was $579 million.

Debt of consolidated variable interest entities—The carrying amount of the variable-rate debt of our consolidated variable interest entities approximates fair value because the terms of those debt instruments include short-term interest rates and exclude penalties for prepayments. We measured the estimated fair value of the debt of our consolidated variable interest entities using significant other observable inputs, representative of a Level 2 fair value measurement, including the terms and credit spreads of the instruments. At December 31, 2013 and 2012, the aggregate carrying amount of the variable-rate debt of our consolidated variable interest entities was $163 million and $191 million, respectively.

Derivative instruments—The carrying amount of our derivative instruments represents the estimated fair value. We measured the estimated fair value using significant other observable inputs, representative of a Level 2 fair value measurement, including the interest rates and terms of the instruments.