Business Combinations (Details) (Micromet, Inc. [Member], USD $) In Millions, unless otherwise specified	Mar. 07, 2012
Allocation of the total consideration to the acquisition date fair values of assets acquired and liabilities assumed
Goodwill	$ 368
Cash and marketable securities	154
Deferred tax liabilities	(317)
Other assets (liabilities) acquired, net	(19)
Total consideration	1,146
Developed technology [Member]
Allocation of the total consideration to the acquisition date fair values of assets acquired and liabilities assumed
Finite-lived intangible assets	350
In-process Research and Development [Member]
Allocation of the total consideration to the acquisition date fair values of assets acquired and liabilities assumed
Indefinite-lived intangible assets	440
Contract Assets [Member]
Allocation of the total consideration to the acquisition date fair values of assets acquired and liabilities assumed
Indefinite-lived intangible assets	$ 170

The amount of acquisition cost of a business combination allocated to cash and marketable securities.

No definition available.

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- Definition

The amount of acquisition cost of a business combination allocated to identifiable other assets and liabilities, net.

+ References

No definition available.

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph e

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-Name Statement of Financial Accounting Standard (FAS)

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- Definition

Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 38

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- Definition

Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 52

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will not be amortized. Does not include goodwill.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 52

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

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