Principal amount of notes to which the common stock conversion ratio is applied.

No definition available.

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- Definition

Net Cost of Convertible Note Hedge and Warrant Transactions

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No definition available.

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- Definition

Number Of Shares Covered By The Purchase Of Convertible Note Hedges and Warrants

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No definition available.

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- Definition

Payments to acquire convertible note hedges.

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No definition available.

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Payment to Settle Warrants Related to Convertible Notes

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- Definition

Percentage of last reported sale price of common stock

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

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- Definition

Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

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-Subparagraph (SX 210.5-02.22(a)(5))

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-Name Accounting Standards Codification

-Glossary Conversion Rate

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- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

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-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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-Topic 835

-SubTopic 30

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-Paragraph 2

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-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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-Name Accounting Standards Codification

-Topic 835

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Topic 210

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

No definition available.

+ Details

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- Definition

The amount of cash received during the period on settlement of a hedge.

+ References

No definition available.

+ Details

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Aggregate amount of interest paid or due on all long-term debt.

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-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 8

-Article 9

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.8)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

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

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-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

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- Definition

Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

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No definition available.

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Debt and Credit Facility May Convertible Senior Notes (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Jul. 31, 2010	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Debt Instrument [Line Items]
Repayments of Debt		$ 4,779,000,000us-gaap_RepaymentsOfDebt	$ 4,440,000,000us-gaap_RepaymentsOfDebt	$ 1,839,000,000us-gaap_RepaymentsOfDebt
Temporary Equity, Carrying Amount, Attributable to Parent		15,000,000	64,000,000
Payment to Settle Warrants Related to Convertible Notes		4,093,000,000	1,040,000,000	0
Convertible Senior Notes Due in May 2014 and May 2016 [Member]
Debt Instrument [Line Items]
Interest Expense, Long-term Debt		38,000,000	107,000,000	87,000,000
Debt Issuance Cost					35,000,000
Debt Instrument, Convertible, Beneficial Conversion Feature	2,500,000,000
Derivative, Cash Received on Hedge		2,500,000,000
Payments To Acquire Convertible Note Hedges	363,000,000
Number Of Shares Covered By Purchase Of Convertible Note Hedges and Warrants	111
Proceeds from Issuance of Warrants	155,000,000
Net Cost Of Convertible Note Hedge And Warrant Transactions	207,000,000
Convertible Senior Notes Due May 2014 [Member]
Debt Instrument [Line Items]
Repayments of Debt		912,000,000
Convertible Senior Notes Due May 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger		130.00%
Percentage of last reported sale price of common stock		98.00%
Convertible Senior Notes Due In May 2014 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		3.50%
Debt Instrument, Interest Rate, Stated Percentage		1.00%
Debt Instrument, Face Amount	1,300,000,000
Debt Instrument, Convertible, Conversion Ratio					44.3690
Debt Instrument, Convertible, Conversion Price		$ 22.54
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 28.38
Convertible Senior Notes Due May 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Convertible, Conversion Ratio					0
Debt Instrument, Redemption Price, Percentage		100.00%
Convertible Senior Notes Due May 2014 [Member]
Debt Instrument [Line Items]
Conversion Of Notes Base Conversion Value					1,000
Debt Instrument, Convertible, Conversion Price		$ 22.71
Number Of Shares Covered By Purchase Of Convertible Note Hedges and Warrants	56
Convertible Senior Notes Due In May 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		4.00%
Debt Instrument, Convertible, If-converted Value in Excess of Principal		1,600,000,000
Debt Instrument, Interest Rate, Stated Percentage		1.625%
Debt Instrument, Face Amount	1,300,000,000
Conversion Of Notes Base Conversion Value					$ 1,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 30.05
Convertible Senior notes due May 2014 and May 2016 [Member]
Debt Instrument [Line Items]
Number Of Shares Covered By Purchase Of Convertible Note Hedges and Warrants	111