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Consolidated Statements of Income (USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenue      
Product revenue $ 1,297 [1] $ 1,122 [1] $ 933 [1]
Service revenue 1,368 1,240 1,003
Total revenue 2,665 2,362 1,936
Costs and operating expenses      
Cost of products 416 381 306
Cost of services 758 688 542
Selling, general and administrative expenses 728 663 526
Research and development expenses 183 174 147
Total costs and operating expenses 2,085 1,906 1,521
Income from operations 580 456 415
Other (expense) income, net (2) 25 (1)
Income before income taxes 578 481 414
Income tax expense 159 128 113
Net income $ 419 $ 353 $ 301
Net income per common share      
Basic $ 2.49 $ 2.10 $ 1.80
Diluted $ 2.44 $ 2.05 $ 1.77
Weighted average common shares outstanding      
Basic 168.2 168.1 167.4
Diluted 171.7 171.9 170.4
[1] Our data warehousing software and hardware products are often sold and delivered together in the form of a "node" of capacity as an integrated technology solution. Accordingly, it is impracticable to provide the breakdown of revenue from various types of software and hardware products.