Derivative Instruments

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

We are exposed to market risk from changes in foreign currency and changes in interest rates. From time to time, we may enter into derivative financial instrument transactions to manage or reduce our market risk. We manage our debt portfolio to achieve an overall desired position of fixed and floating rates, and we may employ interest rate swaps as a tool to achieve that goal. The major risks from interest rate derivatives include changes in the interest rates affecting the fair value of such instruments, potential increases in interest expense due to market increases in floating interest rates and the creditworthiness of the counterparties in such transactions. In light of events in the global credit markets and the potential impact of these events on the liquidity of the banking industry, we continue to monitor the creditworthiness of our counterparties, which are multinational commercial banks. The fair values of all our outstanding derivative instruments are determined using a model with Level 2 inputs including quoted market prices for contracts with similar terms and maturity dates. Level 2 values for financial assets and liabilities are based on quoted prices in inactive markets, or whose values are based on models. Level 2 inputs to those models are observable either directly or indirectly for substantially the full term of the asset or liability.

Fair Value Hedges

We may use interest rate swaps to help mitigate exposures related to changes in the fair values of the associated debt. Amounts paid or received upon termination of interest rate swaps accounted for as fair value hedges represent the fair value of the agreements at the time of termination and are amortized as a reduction, in the case of gains, or as an increase, in the case of losses, of interest expense over the remaining term of the debt.

In June 2012, we terminated interest rate swap agreements to pay a variable interest rate and receive a fixed interest rate with an aggregate notional amount of $300 million. These swaps were designated as fair value hedges of our 6.35% senior notes. As a result of these terminations, we received a cash settlement of $18 million. The gain associated with these interest rate swap terminations was deferred and is being amortized over the remaining term of our 6.35% senior notes as a reduction in interest expense.

 As of December 31, 2014 and 2013, we had net unamortized gains of $33 million and $42 million, respectively, associated with interest rate swap terminations.

Cash Flow Hedges

In 2008, we entered into interest rate derivative instruments to hedge projected exposures to interest rates in anticipation of a debt offering. These hedges were terminated at the time of the issuance of the debt and the associated loss on these hedges is being amortized from Accumulated Other Comprehensive Income (Loss) into interest expense over the remaining term of the debt. As of December 31, 2014 and 2013, we had net unamortized losses of $11 million in both periods associated with our cash flow hedge terminations.

Other Derivative Instruments

We enter into contracts to hedge our exposure to currency fluctuations in various foreign currencies. As of December 31, 2014 and 2013, we had outstanding foreign currency forward contracts with total notional amounts aggregating $1.6 billion and $992 million, respectively. The notional amounts of our foreign currency forward contracts do not generally represent amounts exchanged by the parties and thus are not a measure of the cash requirements related to these contracts or of any possible loss exposure. The amounts actually exchanged are calculated by reference to the notional amounts and by other terms of the derivative contracts, such as exchange rates.

We have cross-currency swaps between the U.S. dollar and Canadian dollar to hedge certain exposures to the Canadian dollar. At December 31, 2014 and 2013, we had swaps with notional amounts outstanding of $168 million for each year. These derivative instruments for foreign currency forward contracts and cross-currency swaps were not designated as hedges, and the changes in fair value of the contracts are recorded in current earnings each period in the line captioned “Other, Net” on the accompanying Consolidated Statements of Operations.

The total estimated fair values of these foreign currency forward contracts and amounts receivable or owed associated with closed foreign currency contracts and the total estimated fair value of our cross-currency contracts are as follows:

	December 31,
(Dollars in millions)	2014			2013			Classifications
Derivative assets not designated as hedges:
Foreign currency forward contracts	$	12		$	5		Other Current Assets
Derivative liabilities not designated as hedges:
Foreign currency forward contracts	(17		)	(6		)	Other Current Liabilities
Cross-currency swap contracts	(5		)	(21		)	Other Liabilities

The effect of derivative instruments designated as fair value hedges and those not designated as hedges on the Consolidated Statements of Operations is in the table below.

Gain (Loss) Recognized in Statement of Operations	Twelve Months Ended   December 31,
(Dollars In millions)	2014			2013			Classification
Derivatives designated as fair value hedges:
Interest rate swaps	$	9		$	10		Interest Expense, Net
Derivative liabilities not designated as hedges:
Foreign currency forward contracts	(22		)	(12		)	Other, Net
Cross-currency swap contracts	16			13			Other, Net