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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Additional Paid-in Capital | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Loss | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2018 |  | 132.3 |  | 35.7 |  |  |
Beginning Balance at Dec. 31, 2018 | $ 2,869.1 | $ 1.3 | $ 914.6 | $ (816.1) | $ 3,022.0 | $ (256.6) | $ 3.9
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (11.7) |  |  |  | (11.7) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | 0.4 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (5.5) |  | (14.4) | $ 8.9 |  |  |
Stock based compensation | 8.5 |  | 8.5 |  |  |  |
Net income (loss) | (4.0) |  |  |  | (4.5) |  | 0.5
Other comprehensive income (loss), net of tax | (52.4) |  |  |  |  | (52.4) |
Acquisitions, net (in shares) |  | 65.8 |  |  |  |  |
Acquisitions, net | 6,975.0 | $ 0.7 | 6,887.6 |  |  |  | 86.7
Other owner changes | 1.4 |  |  |  |  |  | 1.4
Ending Balance (in shares) at Mar. 31, 2019 |  | 198.1 |  | 35.3 |  |  |
Ending Balance at Mar. 31, 2019 | 9,780.4 | $ 2.0 | 7,796.3 | $ (807.2) | 3,005.8 | (309.0) | 92.5
Beginning Balance (in shares) at Dec. 31, 2018 |  | 132.3 |  | 35.7 |  |  |
Beginning Balance at Dec. 31, 2018 | 2,869.1 | $ 1.3 | 914.6 | $ (816.1) | 3,022.0 | (256.6) | 3.9
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | 189.5 |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (212.0) |  |  |  |  |  |
Ending Balance (in shares) at Sep. 30, 2019 |  | 226.9 |  | 35.3 |  |  |
Ending Balance at Sep. 30, 2019 | 9,729.4 | $ 2.0 | 7,815.8 | $ (807.6) | 3,154.8 | (468.6) | 33.0
Beginning Balance (in shares) at Mar. 31, 2019 |  | 198.1 |  | 35.3 |  |  |
Beginning Balance at Mar. 31, 2019 | 9,780.4 | $ 2.0 | 7,796.3 | $ (807.2) | 3,005.8 | (309.0) | 92.5
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (22.6) |  |  |  | (22.6) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | 0.1 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (3.0) |  | (4.6) | $ 1.6 |  |  |
Stock based compensation | 15.4 |  | 15.4 |  |  |  |
Net income (loss) | 102.7 |  |  |  | 104.1 |  | (1.4)
Other comprehensive income (loss), net of tax | 19.8 |  |  |  |  | 19.8 |
Acquisitions, net (in shares) |  | 0.0 |  |  |  |  |
Acquisitions, net | (56.2) |  |  |  |  |  | (56.2)
Other owner changes (in shares) |  | 25.3 |  |  |  |  |
Other owner changes | (1.6) |  |  |  |  |  | (1.6)
Ending Balance (in shares) at Jun. 30, 2019 |  | 223.4 |  | 35.2 |  |  |
Ending Balance at Jun. 30, 2019 | 9,834.9 | $ 2.0 | 7,807.1 | $ (805.6) | 3,087.3 | (289.2) | 33.3
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (23.9) |  |  |  | (23.9) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | (0.1) |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (5.5) |  | (3.5) | $ (2.0) |  |  |
Stock based compensation | 12.2 |  | 12.2 |  |  |  |
Net income (loss) | 90.6 |  |  |  |  |  |
Net income (loss) | 90.8 |  |  |  | 91.4 |  | (0.6)
Other comprehensive income (loss), net of tax | (179.4) |  |  |  |  | (179.4) |
Acquisitions, net | 0.1 |  |  |  |  |  | 0.1
Other owner changes (in shares) |  | 3.5 |  |  |  |  |
Other owner changes | 0.2 |  |  |  |  |  | 0.2
Ending Balance (in shares) at Sep. 30, 2019 |  | 226.9 |  | 35.3 |  |  |
Ending Balance at Sep. 30, 2019 | 9,729.4 | $ 2.0 | 7,815.8 | $ (807.6) | 3,154.8 | (468.6) | 33.0
Beginning Balance (in shares) at Dec. 31, 2019 |  | 226.9 |  | 35.3 |  |  |
Beginning Balance at Dec. 31, 2019 | 9,993.6 | $ 2.0 | 7,877.2 | $ (807.1) | 3,267.0 | (382.6) | 37.1
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (23.0) |  |  |  | (23.0) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | 0.2 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (5.7) |  | (7.9) | $ 2.2 |  |  |
Stock based compensation | 10.0 |  | 10.0 |  |  |  |
Net income (loss) | 111.2 |  |  |  | 111.6 |  | (0.4)
Other comprehensive income (loss), net of tax | (178.0) |  |  |  |  | (178.0) |
Stock repurchase (in shares) |  |  |  | (1.6) |  |  |
Stock repurchase | (105.3) |  |  | $ (105.3) |  |  |
Other owner changes | (5.1) |  | (4.3) |  |  |  | (0.8)
Ending Balance (in shares) at Mar. 31, 2020 |  | 226.9 |  | 36.7 |  |  |
Ending Balance at Mar. 31, 2020 | 9,797.7 | $ 2.0 | 7,875.0 | $ (910.2) | 3,355.6 | (560.6) | 35.9
Beginning Balance (in shares) at Dec. 31, 2019 |  | 226.9 |  | 35.3 |  |  |
Beginning Balance at Dec. 31, 2019 | 9,993.6 | $ 2.0 | 7,877.2 | $ (807.1) | 3,267.0 | (382.6) | 37.1
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | 325.5 |  |  |  |  |  |
Other comprehensive income (loss), net of tax | (99.6) |  |  |  |  |  |
Ending Balance (in shares) at Sep. 30, 2020 |  | 226.9 |  | 36.6 |  |  |
Ending Balance at Sep. 30, 2020 | 10,052.4 | $ 2.0 | 7,882.3 | $ (909.4) | 3,524.2 | (482.2) | 35.5
Beginning Balance (in shares) at Mar. 31, 2020 |  | 226.9 |  | 36.7 |  |  |
Beginning Balance at Mar. 31, 2020 | 9,797.7 | $ 2.0 | 7,875.0 | $ (910.2) | 3,355.6 | (560.6) | 35.9
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (23.4) |  |  |  | (23.4) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | 0.1 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | 0.3 |  | (0.6) | $ 0.9 |  |  |
Stock based compensation | (2.7) |  | (2.7) |  |  |  |
Net income (loss) | 85.8 |  |  |  | 86.8 |  | (1.0)
Other comprehensive income (loss), net of tax | 22.8 |  |  |  |  | 22.8 |
Other owner changes | 0.1 |  |  |  |  |  | 0.1
Ending Balance (in shares) at Jun. 30, 2020 |  | 226.9 |  | 36.6 |  |  |
Ending Balance at Jun. 30, 2020 | 9,880.6 | $ 2.0 | 7,871.7 | $ (909.3) | 3,419.0 | (537.8) | 35.0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (22.8) |  |  |  | (22.8) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) |  |  |  | 0.0 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | 0.3 |  | 0.4 | $ (0.1) |  |  |
Stock based compensation | 10.2 |  | 10.2 |  |  |  |
Net income (loss) | 128.5 |  |  |  | 128.0 |  | 0.5
Other comprehensive income (loss), net of tax | 55.6 |  |  |  |  | 55.6 |
Ending Balance (in shares) at Sep. 30, 2020 |  | 226.9 |  | 36.6 |  |  |
Ending Balance at Sep. 30, 2020 | $ 10,052.4 | $ 2.0 | $ 7,882.3 | $ (909.4) | $ 3,524.2 | $ (482.2) | $ 35.5

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