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Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Common Stock, Shares Issued [Member] | Common Stock | Additional Paid-In Capital | Retained Earnings (Accumulated Deficit) | Accumulated Other Comprehensive Loss, Net of Tax | Treasury Stock | Total IPG Stockholders' Equity | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Common stock, shares issued |  | 394.3 |  |  |  |  |  |  |
Balance at Dec. 31, 2016 | $ 2,090.4 |  | $ 39.4 | $ 1,199.2 | $ 1,839.9 | $ (964.4) | $ (63.3) | $ 2,050.8 | $ 39.6
Cumulative effect of accounting change | 570.4 |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 554.4 |  |  |  |  |  |  |  |
NET INCOME | 570.4 |  |  |  | 554.4 |  |  | 554.4 |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 16.0 |  |  |  |  |  |  |  | 16.0
Other comprehensive income | 138.1 |  |  |  |  | 136.6 |  | 136.6 | 1.5
Reclassifications related to redeemable noncontrolling interests | 0.6 |  |  | (0.3) |  |  |  | (0.3) | 0.9
Distributions to noncontrolling interests | (20.9) |  |  |  |  |  |  |  | (20.9)
Change in redemption value of RNCI | (7.9) |  |  |  | (7.9) |  |  | (7.9) |
Repurchases of common stock | (300.1) |  |  |  |  |  | (300.1) | 300.1 |
Retirement of treasury stock, shares |  |  | (13.4) |  |  |  |  |  |
Retirement of treasury stock | (0.0) |  | $ (1.3) | (303.1) |  |  | (304.4) | (0.0) |
Common stock dividends | (280.3) |  |  |  | (280.3) |  |  | (280.3) |
Stock-based compensation, shares |  |  | 5.7 |  |  |  |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | 87.0 |  | $ 0.6 | 86.4 |  |  |  | 87.0 |
Exercise of stock options, shares |  |  | 1.2 |  |  |  |  |  |
Exercise of stock options, Value | 13.2 |  | $ 0.1 | 13.1 |  |  |  | 13.2 |
Shares withheld for taxes, shares |  |  | (1.6) |  |  |  |  |  |
Shares withheld for taxes, value | 39.0 |  | $ 0.2 | 38.8 |  |  |  | 39.0 |
Other | (5.2) |  |  | 1.3 | (1.6) |  |  | (2.9) | (2.3)
Balance at Dec. 31, 2017 | 2,246.3 |  | $ 38.6 | 955.2 | 2,104.5 | (827.8) | (59.0) | 2,211.5 | 34.8
Common stock, shares issued |  | 386.2 |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 618.9 |  |  |  |  |  |  |  |
NET INCOME | 637.7 |  |  |  | 618.9 |  |  | 618.9 |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 18.8 |  |  |  |  |  |  |  | 18.8
Other comprehensive income | (116.1) |  |  |  |  | (113.3) |  | (113.3) | (2.8)
Reclassifications related to redeemable noncontrolling interests | 2.4 |  |  |  |  |  |  | 0.0 | 2.4
Distributions to noncontrolling interests | (16.9) |  |  |  |  |  |  |  | (16.9)
Change in redemption value of RNCI | 42.9 |  |  | 41.8 | 1.1 |  |  | 42.9 |
Repurchases of common stock | (117.1) |  |  |  |  |  | (117.1) | (117.1) |
Retirement of treasury stock, shares |  |  | (8.1) |  |  |  |  |  |
Retirement of treasury stock | (0.0) |  | $ (0.8) | (175.3) |  |  | (176.1) | (0.0) |
Common stock dividends | (322.1) |  |  |  | (322.1) |  |  | (322.1) |
Stock-based compensation, shares |  |  | 4.8 |  |  |  |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | 87.5 |  | $ 0.5 | 87.0 |  |  |  | 87.5 |
Exercise of stock options, shares |  |  | 1.9 |  |  |  |  |  |
Exercise of stock options, Value | 15.7 |  | $ 0.2 | 15.5 |  |  |  | 15.7 |
Shares withheld for taxes, shares |  |  | (1.2) |  |  |  |  |  |
Shares withheld for taxes, value | 29.2 |  | $ 0.2 | 29.0 |  |  |  | 29.2 |
Other | 1.7 |  |  | (0.7) | (2.3) |  |  | (1.6) | 3.3
Balance at Dec. 31, 2018 | $ 2,432.8 |  | 38.3 | 895.9 | 2,400.1 | (941.1) | $ 0.0 | 2,393.2 | 39.6
Common stock, shares issued | 383.6 | 383.6 |  |  |  |  |  |  |
Cumulative effect of accounting change | $ 1.2 |  |  |  | 1.2 |  |  | 1.2 |
Net Income (Loss) Attributable to Parent | 656.0 |  |  |  | 656.0 |  |  | 656.0 |
NET INCOME | 673.9 |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 17.9 |  |  |  |  |  |  |  | 17.9
Other comprehensive income | 10.4 |  |  |  |  | 11.1 |  | 11.1 |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest |  |  |  |  |  |  |  |  | (0.7)
Reclassifications related to redeemable noncontrolling interests | 24.6 |  |  | 11.9 |  |  |  | 11.9 | 12.7
Distributions to noncontrolling interests | (21.6) |  |  |  |  |  |  |  | 21.6
Change in redemption value of RNCI | (0.2) |  |  |  | (0.2) |  |  | (0.2) |
Common stock dividends | (363.1) |  |  |  | (363.1) |  |  | (363.1) |
Stock-based compensation, shares |  | 3.8 |  |  |  |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 89.1 |  | 0.4 | 88.7 |  |  |  | 89.1 |
Exercise of stock options, shares |  | 0.6 |  |  |  |  |  |  |
Exercise of stock options, Value | 4.3 |  | 0.1 | 4.2 |  |  |  | 4.3 |
Shares withheld for taxes, shares |  | (1.0) |  |  |  |  |  |  |
Shares withheld for taxes, value | 22.4 |  | (0.1) | (22.3) |  |  |  | (22.4) |
Other | 3.4 |  |  | 1.1 | 4.1 |  |  | 5.2 | (1.8)
Balance at Dec. 31, 2019 | $ 2,825.6 |  | $ 38.7 | $ 977.3 | $ 2,689.9 | $ (930.0) |  | $ 2,775.9 | $ 49.7
Common stock, shares issued | 387.0 | 387.0 |  |  |  |  |  |  |

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