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v3.10.0.1

Consolidated Statement of Changes in Equity (Unaudited) - USD ($) $ in Millions | Total | Total | Common Shares | Common Stock and Capital Surplus | Retained Earnings | Accumulated Other Comp. Income (Loss) | Noncontrolling interests
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, shares at Dec. 31, 2016 |  |  |  | 86,924,399 |  |  |  |
Beginning Balance at Dec. 31, 2016 |  | $ 4,919 | $ 4,916 |  | $ 1,198 | $ 3,343 | $ 375 | $ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net earnings (losses) attributable to parent |  | 309 | 309 |  |  | 309 |  |
Net earnings (losses) including portion attributable to nonredeemable noncontrolling interest |  | 311 |  |  |  |  |  | 2
Other comprehensive income (loss) |  | 314 | 314 |  |  |  | 314 |
Dividends on Common Stock |  | (214) | (214) |  |  | (214) |  |
Shares issued: |  |  |  |  |  |  |  |
Exercise of stock options, shares |  |  |  | 870,022 |  |  |  |
Exercise of stock options |  | 29 | 29 |  | 29 |  |  |
Restricted stock awards, shares |  |  |  | 232,250 |  |  |  |
Other benefit plans, shares |  |  |  | 85,190 |  |  |  |
Other benefit plans |  | 8 | 8 |  | 8 |  |  |
Dividend reinvestment plan, shares |  |  |  | 22,243 |  |  |  |
Dividend reinvestment plan |  | 2 | 2 |  | 2 |  |  |
Stock-based compensation expense |  | 18 | 18 |  | 18 |  |  |
Shares exchanged — benefit plans, shares |  |  |  | (34,922) |  |  |  |
Shares exchanged — benefit plans |  | (3) | (3) |  |  | (3) |  |
Forfeitures of restricted stock, shares |  |  |  | (6,388) |  |  |  |
Other |  | (5) |  |  |  |  |  | (5)
Ending Balance, shares at Sep. 30, 2017 |  |  |  | 88,092,794 |  |  |  |
Ending Balance at Sep. 30, 2017 |  | 5,379 | 5,379 |  | 1,255 | 3,435 | 689 | 0
Ending Balance, Redeemable Noncontrolling Interests at Sep. 30, 2017 |  | 0 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | [1] |  |  |  |  |  | 0 |
Cumulative effect of accounting change |  | $ 4 | 4 |  |  | 225 | (221) |
Beginning Balance, shares at Dec. 31, 2017 |  | 88,275,460 |  | 88,275,460 |  |  |  |
Beginning Balance at Dec. 31, 2017 |  | $ 5,331 | 5,330 |  | 1,269 | 3,248 | 813 | 1
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net earnings (losses) attributable to parent |  | 559 | 559 |  |  | 559 |  |
Net earnings (losses) including portion attributable to nonredeemable noncontrolling interest |  | 558 |  |  |  |  |  | (1)
Other comprehensive income (loss) |  | (548) | (548) |  |  |  | (548) |
Dividends on Common Stock |  | (227) | (227) |  |  | (227) |  |
Shares issued: |  |  |  |  |  |  |  |
Exercise of stock options, shares |  |  |  | 635,364 |  |  |  |
Exercise of stock options |  | 23 | 23 |  | 23 |  |  |
Restricted stock awards, shares |  |  |  | 200,625 |  |  |  |
Other benefit plans, shares |  |  |  | 86,229 |  |  |  |
Other benefit plans |  | 10 | 10 |  | 10 |  |  |
Dividend reinvestment plan, shares |  |  |  | 21,072 |  |  |  |
Dividend reinvestment plan |  | 2 | 2 |  | 2 |  |  |
Stock-based compensation expense |  | 17 | 17 |  | 17 |  |  |
Shares exchanged — benefit plans, shares |  |  |  | (26,520) |  |  |  |
Shares exchanged — benefit plans |  | (3) | (3) |  | (1) | (2) |  |
Forfeitures of restricted stock, shares |  |  |  | (3,522) |  |  |  |
Other |  | $ (3) | (3) |  |  | (3) |  |
Ending Balance, shares at Sep. 30, 2018 |  | 89,188,708 |  | 89,188,708 |  |  |  |
Ending Balance at Sep. 30, 2018 |  | $ 5,164 | $ 5,164 |  | $ 1,320 | $ 3,800 | 44 | $ 0
Beginning Balance, Redeemable Noncontrolling Interests at Dec. 31, 2017 |  | 3 |  |  |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract] |  |  |  |  |  |  |  |
Net earnings attributable to redeemable noncontrolling interests |  | (6) |  |  |  |  |  |
Other |  | 3 |  |  |  |  |  |
Ending Balance, Redeemable Noncontrolling Interests at Sep. 30, 2018 |  | $ 0 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | [1] |  |  |  |  |  | $ 0 |
[1] | On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change.

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Period Type: | duration