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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions | Total | Total common shareholders' equity | Common stock | Additional paid in capital | Retained earnings | Accumulated other comprehensive loss | Preferred stock of subsidiary | Noncontrolling interests
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2020 | $ 10,662.5 | $ 10,469.7 | $ 3.2 | $ 4,143.7 | $ 6,329.6 | $ (6.8) | $ 30.4 | $ 162.4
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 510.1 | 510.1 | 0.0 | 0.0 | 510.1 | 0.0 | 0.0 | 0.0
Net income (loss) attributable to noncontrolling interests | (0.1) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (0.1)
Other comprehensive income | 1.1 | 1.1 | 0.0 | 0.0 | 0.0 | 1.1 | 0.0 | 0.0
Common stock dividends | (213.7) | (213.7) | 0.0 | 0.0 | (213.7) | 0.0 | 0.0 | 0.0
Exercise of stock options | 1.2 | 1.2 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (6.6) | (6.6) | 0.0 | (6.6) | 0.0 | 0.0 | 0.0 | 0.0
Acquisition of a noncontrolling interest | 6.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.2
Capital contributions from noncontrolling interest | 2.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0
Distributions to noncontrolling interests | (0.4) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (0.4)
Stock-based compensation and other | 5.3 | 5.3 | 0.0 | 5.3 | 0.0 | 0.0 | 0.0 | 0.0
Balance at Mar. 31, 2021 | 10,967.6 | 10,767.1 | 3.2 | 4,143.6 | 6,626.0 | (5.7) | 30.4 | 170.1
Balance at Dec. 31, 2020 | 10,662.5 | 10,469.7 | 3.2 | 4,143.7 | 6,329.6 | (6.8) | 30.4 | 162.4
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 1,076.1 |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interests | (2.3) |  |  |  |  |  |  |
Other comprehensive income | 3.2 |  |  |  |  |  |  |
Balance at Sep. 30, 2021 | 11,106.6 | 10,908.5 | 3.2 | 4,144.4 | 6,764.5 | (3.6) | 30.4 | 167.7
Balance at Mar. 31, 2021 | 10,967.6 | 10,767.1 | 3.2 | 4,143.6 | 6,626.0 | (5.7) | 30.4 | 170.1
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 276.0 | 276.0 | 0.0 | 0.0 | 276.0 | 0.0 | 0.0 | 0.0
Net income (loss) attributable to noncontrolling interests | (0.6) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (0.6)
Other comprehensive income | 1.1 | 1.1 | 0.0 | 0.0 | 0.0 | 1.1 | 0.0 | 0.0
Common stock dividends | (213.8) | (213.8) | 0.0 | 0.0 | (213.8) | 0.0 | 0.0 | 0.0
Exercise of stock options | 2.8 | 2.8 | 0.0 | 2.8 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (4.7) | (4.7) | 0.0 | (4.7) | 0.0 | 0.0 | 0.0 | 0.0
Capital contributions from noncontrolling interest | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5
Distributions to noncontrolling interests | (0.9) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (0.9)
Stock-based compensation and other | 2.4 | 2.4 | 0.0 | 2.4 | 0.0 | 0.0 | 0.0 | 0.0
Balance at Jun. 30, 2021 | 11,030.4 | 10,830.9 | 3.2 | 4,144.1 | 6,688.2 | (4.6) | 30.4 | 169.1
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 290.0 | 290.0 | 0.0 | 0.0 | 290.0 | 0.0 | 0.0 | 0.0
Net income (loss) attributable to noncontrolling interests | (1.6) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (1.6)
Other comprehensive income | 1.0 | 1.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0
Common stock dividends | (213.7) | (213.7) | 0.0 | 0.0 | (213.7) | 0.0 | 0.0 | 0.0
Exercise of stock options | 2.5 | 2.5 | 0.0 | 2.5 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (4.4) | (4.4) | 0.0 | (4.4) | 0.0 | 0.0 | 0.0 | 0.0
Capital contributions from noncontrolling interest | 2.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.2
Distributions to noncontrolling interests | (2.0) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (2.0)
Stock-based compensation and other | 2.2 | 2.2 | 0.0 | 2.2 | 0.0 | 0.0 | 0.0 | 0.0
Balance at Sep. 30, 2021 | 11,106.6 | 10,908.5 | 3.2 | 4,144.4 | 6,764.5 | (3.6) | 30.4 | 167.7
Balance at Dec. 31, 2021 | 11,113.3 | 10,913.2 | 3.2 | 4,138.1 | 6,775.1 | (3.2) | 30.4 | 169.7
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 565.9 | 565.9 | 0.0 | 0.0 | 565.9 | 0.0 | 0.0 | 0.0
Net income (loss) attributable to noncontrolling interests | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8
Common stock dividends | (229.6) | (229.6) | 0.0 | 0.0 | (229.6) | 0.0 | 0.0 | 0.0
Exercise of stock options | 11.8 | 11.8 | 0.0 | 11.8 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (23.4) | (23.4) | 0.0 | (23.4) | 0.0 | 0.0 | 0.0 | 0.0
Capital contributions from noncontrolling interest | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4
Distributions to noncontrolling interests | (1.0) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (1.0)
Stock-based compensation and other | 5.3 | 5.3 | 0.0 | 5.3 | 0.0 | 0.0 | 0.0 | 0.0
Balance at Mar. 31, 2022 | 11,444.5 | 11,243.2 | 3.2 | 4,131.8 | 7,111.4 | (3.2) | 30.4 | 170.9
Balance at Dec. 31, 2021 | 11,113.3 | 10,913.2 | 3.2 | 4,138.1 | 6,775.1 | (3.2) | 30.4 | 169.7
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 1,155.4 |  |  |  |  |  |  |
Net income (loss) attributable to noncontrolling interests | 1.2 |  |  |  |  |  |  |
Other comprehensive income | 0.0 |  |  |  |  |  |  |
Balance at Sep. 30, 2022 | 11,596.1 | 11,355.5 | 3.2 | 4,113.5 | 7,242.0 | (3.2) | 30.4 | 210.2
Balance at Mar. 31, 2022 | 11,444.5 | 11,243.2 | 3.2 | 4,131.8 | 7,111.4 | (3.2) | 30.4 | 170.9
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 287.5 | 287.5 | 0.0 | 0.0 | 287.5 | 0.0 | 0.0 | 0.0
Common stock dividends | (229.4) | (229.4) | 0.0 | 0.0 | (229.4) | 0.0 | 0.0 | 0.0
Exercise of stock options | 11.2 | 11.2 | 0.0 | 11.2 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (25.0) | (25.0) | 0.0 | (25.0) | 0.0 | 0.0 | 0.0 | 0.0
Capital contributions from noncontrolling interest | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1
Distributions to noncontrolling interests | (1.2) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (1.2)
Stock-based compensation and other | 2.9 | 3.1 | 0.0 | 3.1 | 0.0 | 0.0 | 0.0 | (0.2)
Balance at Jun. 30, 2022 | 11,490.6 | 11,290.6 | 3.2 | 4,121.1 | 7,169.5 | (3.2) | 30.4 | 169.6
Statements of equity |  |  |  |  |  |  |  |
Net income attributed to common shareholders | 302.0 | 302.0 | 0.0 | 0.0 | 302.0 | 0.0 | 0.0 | 0.0
Net income (loss) attributable to noncontrolling interests | (0.6) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (0.6)
Other comprehensive income | 0.0 |  |  |  |  |  |  |
Common stock dividends | (229.5) | (229.5) | 0.0 | 0.0 | (229.5) | 0.0 | 0.0 | 0.0
Exercise of stock options | 10.1 | 10.1 | 0.0 | 10.1 | 0.0 | 0.0 | 0.0 | 0.0
Purchase of common stock | (19.9) | (19.9) | 0.0 | (19.9) | 0.0 | 0.0 | 0.0 | 0.0
Acquisition of a noncontrolling interest | 42.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 42.5
Distributions to noncontrolling interests | (1.3) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (1.3)
Stock-based compensation and other | 2.2 | 2.2 | 0.0 | 2.2 | 0.0 | 0.0 | 0.0 | 0.0
Balance at Sep. 30, 2022 | $ 11,596.1 | $ 11,355.5 | $ 3.2 | $ 4,113.5 | $ 7,242.0 | $ (3.2) | $ 30.4 | $ 210.2

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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. 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- Definition This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. + References No definition available. + Details
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