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Financial Instruments And Risk Management Financial Instruments and Risk Management (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table presents the fair value of derivative instruments included within our condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014:

		Asset Derivatives									Liability Derivatives
		Balance Sheet	March 31,				December 31,				Balance Sheet	March 31,				December 31,
Dollars in millions		Location	2015				2014				Location	2015				2014
Balance sheet hedges		Other current assets	$	4			$	3			Other current liabilities	$	12			$	7
Cash flow hedges		Other current assets	—				—				Other current liabilities	1				—
Total			$	4			$	3				$	13			$	7

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The following table presents, by currency, the gross notional value of our foreign currency exchange forwards and option contracts used to hedge exposures on our balance sheet that were outstanding as of March 31, 2015:

	March 31,
USD Equivalent, Dollars in Millions	2015
United States Dollar	958
Australian Dollar	375
Pound Sterling	86
Canadian Dollar	25
Swedish Kroner	11
Saudi Riyal	8
Indian Rupee	5
Norwegian Kroner	2
Total balance sheet hedges	1,470

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following table summarizes the recognized changes in fair value of our balance sheet hedges offset by remeasurement of balance sheet positions. These amounts are recognized in our statements of operations for the periods presented. The net of our changes in fair value of hedges and the remeasurement of our assets and liabilities is included in "other non-operating income (expense)" on our condensed consolidated statements of operations.

	March 31,				December 31,
Gains (losses) dollars in millions	2015				2014
Balance sheet hedges - fair value	$	(41	)		$	(47	)
Balance sheet position - remeasurement	48				47
Net	$	7			$	—

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- Definition

Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959

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Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

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- Definition

Tabular disclosure of the notional amounts of outstanding derivative positions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959

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