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Fair Value Measurements (Notes)
9 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Fair Value Disclosures [Text Block]
FAIR VALUE MEASUREMENTS

Assets (Liabilities) Measured at Fair Value on a Recurring Basis
(in millions)
September 30,
2013
Level 1
Level 2
Level 3
Cash equivalents
$
2,702

$
2,702

$

$

Short-term investments
959

959



Restricted cash equivalents and investments
209

209



Long-term investments
112

84

28


Hedge derivatives, net
 
 
 
 
Fuel contracts
333

57

276


Interest rate contracts
(66
)

(66
)

Foreign currency exchange contracts
193


193



(in millions)
December 31,
2012
Level 1
Level 2
Level 3
Cash equivalents
$
2,176

$
2,176

$

$

Short-term investments
958

958



Restricted cash equivalents and investments
344

344



Long-term investments
208

100

27

81

Hedge derivatives, net
 
 
 
 
Fuel contracts
249

27

222


Interest rate contracts
(66
)

(66
)

Foreign currency exchange contracts
123


123




Cash Equivalents, Short-term Investments and Restricted Cash Equivalents and Investments. Cash equivalents and short-term investments generally consist of money market funds and treasury bills. Restricted cash equivalents and investments are primarily held to meet certain projected self-insurance obligations and generally consist of money market funds and time deposits. These investments are recorded at cost, which approximates fair value. Fair value is based on a market approach using prices and other relevant information generated by market transactions involving identical or comparable assets.

Long-term Investments. Our long-term investments that are measured at fair value primarily consist of equity investments in Grupo Aeroméxico, S.A.B. de C.V., the parent company of Aeroméxico, and GOL Linhas Aéreas Inteligentes, S.A, the parent company of GOL. Shares of the parent companies of Aeroméxico and GOL are traded on public exchanges and we have valued our investments based on quoted market prices. The investments are classified in other noncurrent assets. In 2013, we sold our remaining auction rate securities, which were previously classified as Level 3 instruments.

Hedge Derivatives. Our derivative contracts are generally negotiated with counterparties without going through a public exchange. Accordingly, our fair value assessments give consideration to the risk of counterparty default (as well as our own credit risk).

Fuel Derivatives. Our fuel hedge portfolio consists of call options; put options; combinations of two or more call options and put options; swap contracts; and futures contracts. The products underlying the hedge contracts include crude oil, diesel fuel and jet fuel as these commodities are highly correlated with the price of jet fuel that we consume. Option contracts are valued under an income approach using option pricing models based on data either readily observable in public markets, derived from public markets or provided by counterparties who regularly trade in public markets. Volatilities used in these valuations ranged from 12% to 28% depending on the maturity dates, underlying commodities and strike prices of the option contracts. Swap contracts are valued under an income approach using a discounted cash flow model based on data either readily observable or derived from public markets. Discount rates used in these valuations vary with the maturity dates of the respective contracts and are based on LIBOR. Futures contracts and options on futures contracts are traded on a public exchange and valued based on quoted market prices.

Interest Rate Derivatives. Our interest rate derivatives consist primarily of swap contracts and are valued primarily based on data readily observable in public markets.

Foreign Currency Derivatives. Our foreign currency derivatives consist of Japanese yen and Canadian dollar forward contracts and are valued based on data readily observable in public markets.