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Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Income Statement [Abstract] |  |  |  |
REVENUE | $ 1,841.1 | $ 1,700.4 | $ 5,330.0 | $ 4,999.6
OPERATING EXPENSES: |  |  |  |
Salaries and related expenses | 1,195.2 | 1,093.6 | 3,554.0 | 3,345.9
Office and general expenses | 474.6 | 465.3 | 1,420.6 | 1,379.8
Total operating expenses | 1,669.8 | 1,558.9 | 4,974.6 | 4,725.7
OPERATING INCOME | 171.3 | 141.5 | 355.4 | 273.9
EXPENSES AND OTHER INCOME: |  |  |  |
Interest expense | (20.7) | (23.7) | (63.5) | (98.0)
Interest income | 7.5 | 5.8 | 20.3 | 18.0
Other expense, net | (0.6) | (46.6) | (10.1) | (40.0)
Total (expenses) and other income | (13.8) | (64.5) | (53.3) | (120.0)
Income before income taxes | 157.5 | 77.0 | 302.1 | 153.9
Provision for income taxes | 65.0 | 28.4 | 128.6 | 78.0
Income of consolidated companies | 92.5 | 48.6 | 173.5 | 75.9
Equity in net income of unconsolidated affiliates | 0.3 | 0.6 | 0.6 | 0.9
NET INCOME | 92.8 | 49.2 | 174.1 | 76.8
Net income attributable to noncontrolling interests | (3.1) | (0.9) | (5.9) | (2.0)
NET INCOME ATTRIBUTABLE TO IPG | 89.7 | 48.3 | 168.2 | 74.8
Dividends on preferred stock | 0 | (2.9) | 0 | (8.7)
NET INCOME AVAILABLE TO IPG COMMON STOCKHOLDERS | $ 89.7 | $ 45.4 | $ 168.2 | $ 66.1
Earnings per share available to IPG common stockholders - basic | $ 0.21 | $ 0.11 | $ 0.40 | $ 0.16
Earnings per share available to IPG common stockholders - diluted | $ 0.21 | $ 0.11 | $ 0.39 | $ 0.16
Weighted Average Number of Shares Outstanding, Basic | 419.2 | 419.7 | 421.0 | 419.7
Weighted Average Number of Shares Outstanding, Diluted | 426.4 | 426.1 | 427.2 | 424.8
Dividends declared per common share | $ 0.095 | $ 0.075 | $ 0.285 | $ 0.225

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