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General information / Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2012

General information / Summary of significant accounting policies [Abstract]

Other intangible assets


Category		Estimated useful life

Intellectual property		3 - 10 years
Developed technology		6 years
Customer relationships		8 years
Other		2 - 6 years

Property, plant and equipment


Category		Estimated useful life

Buildings and constructions		5 - 40 years
Machinery and equipment		2 - 5 years
Leasehold improvements		5 - 10 years
Furniture, fixtures and other equipment		3 - 5 years

Net income per ordinary share


Year ended December 31 (in thousands, except per share data)			2012 EUR				2011 EUR				2010 EUR


Net income			1,146,316				1,466,960				1,021,820

Weighted average number of shares outstanding during the year (after deduction of treasury stock)			424,096				425,618				435,146

Basic net income per ordinary share			2.70				3.45				2.35

Weighted average number of shares:			424,096				425,618				435,146
Plus shares applicable to:
Options and conditional shares¹			2,890				3,435				3,828


Dilutive potential ordinary shares			2,890				3,435				3,828


Adjusted weighted average number of shares			426,986				429,053				438,974

Diluted net income per ordinary share¹			2.68				3.42				2.33

1

The calculation of diluted net income per ordinary share assumes the exercise of options issued under ASML stock option plans and the issuance of shares under ASML share plans for periods in which exercises or issuances would have a dilutive effect. The calculation of diluted net income per ordinary share does not assume exercise of such options or issuance of shares when such exercises or issuance would be anti-dilutive.