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Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Income Statement [Abstract] |  |  |  |
REVENUE | $ 1,715.7 | $ 1,740.7 | $ 3,222.5 | $ 3,215.5
OPERATING EXPENSES: |  |  |  |
Salaries and related expenses | 1,088.9 | 1,095.7 | 2,193.8 | 2,175.8
Office and general expenses | 450.4 | 471.0 | 891.7 | 911.0
Total operating expenses | 1,539.3 | 1,566.7 | 3,085.5 | 3,086.8
OPERATING INCOME | 176.4 | 174.0 | 137.0 | 128.7
EXPENSES AND OTHER INCOME: |  |  |  |
Interest expense | (32.7) | (33.1) | (65.3) | (65.0)
Interest income | 6.7 | 9.7 | 14.7 | 18.0
Other income (expense), net | 4.7 | 5.3 | 3.4 | (0.8)
Total (expenses) and other income | (21.3) | (18.1) | (47.2) | (47.8)
Income before income taxes | 155.1 | 155.9 | 89.8 | 80.9
Provision for income taxes | 50.1 | 47.6 | 30.9 | 26.1
Income of consolidated companies | 105.0 | 108.3 | 58.9 | 54.8
Equity in net income of unconsolidated affiliates | 0.5 | 0.6 | 0.9 | 0.9
NET INCOME | 105.5 | 108.9 | 59.8 | 55.7
Net (income) loss attributable to noncontrolling interests | (3.6) | (4.3) | (0.9) | 3.7
NET INCOME ATTRIBUTABLE TO IPG | 101.9 | 104.6 | 58.9 | 59.4
Dividends on preferred stock | (2.9) | (2.9) | (5.8) | (5.8)
NET INCOME AVAILABLE TO IPG COMMON STOCKHOLDERS | $ 99.0 | $ 101.7 | $ 53.1 | $ 53.6
Earnings per share available to IPG common stockholders: |  |  |  |
Basic | $ 0.23 | $ 0.21 | $ 0.12 | $ 0.11
Diluted | $ 0.22 | $ 0.19 | $ 0.12 | $ 0.11
Weighted-average number of common shares outstanding: |  |  |  |
Basic | 437.4 | 473.1 | 437.5 | 474.6
Diluted | 477.7 | 546.9 | 459.7 | 515.6
Dividends declared per common share | $ 0.06 | $ 0.06 | $ 0.12 | $ 0.12

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