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Schedule II - Condensed Financial Information of Registrant - Financial Position (Details) - USD ($) $ / shares in Units, $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Assets |  |  |  |
Fixed income securities, at fair value (amortized cost $458 and $355) | $ 59,044 | $ 57,170 |  |
Short-term investments | 4,256 | 3,027 |  |
Cash | 338 | 499 |  |
Total assets | 119,950 | 112,249 |  |
Liabilities |  |  |  |
Long-term debt | 6,631 | 6,451 |  |
Total liabilities | 93,952 | 90,937 |  |
Shareholders’ equity |  |  |  |
Preferred stock and additional capital paid-in, $1 par value, 25 million shares authorized, 92.5 thousand and 79.8 thousand shares issued and outstanding, $2,313 and $1,995 aggregate liquidation preference | 2,248 | 1,930 |  |
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 319 million and 332 million shares outstanding | 9 | 9 |  |
Additional capital paid-in | 3,463 | 3,310 |  |
Retained income | 48,074 | 44,033 |  |
Deferred Employee Stock Ownership Plan (“ESOP”) expense | 0 | (3) |  |
Treasury stock, at cost (581 million and 568 million shares) | (29,746) | (28,085) |  |
Accumulated other comprehensive income: |  |  |  |
Unrealized net capital gains and losses | 1,887 | (2) |  |
Unrealized foreign currency translation adjustments | (59) | (49) |  |
Unamortized pension and other postretirement prior service credit | 122 | 169 |  |
Total accumulated other comprehensive income | 1,950 | 118 |  |
Total shareholders’ equity | 25,998 | 21,312 | $ 22,551 |
Total liabilities and shareholders’ equity | 119,950 | 112,249 |  |
Additional balance sheet disclosures: |  |  |  |
Short-term, at fair value, amortized cost (in dollars) | $ 4,256 | $ 3,027 |  |
Preferred stock, par value (in dollars per share) | $ 1 | $ 1 |  |
Preferred stock, shares authorized (in shares) | 25,000,000 | 25,000,000 |  |
Preferred stock, shares issued (in shares) | 92,500 | 79,800 |  |
Preferred stock, shares outstanding (in shares) | 92,500 | 79,800 |  |
Preferred stock, shares aggregate liquidation preference (in dollars) | $ 2,313 | $ 1,995 |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |  |
Common stock, shares authorized (in shares) | 2,000,000,000.0 | 2,000,000,000.0 |  |
Common stock, shares issued (in shares) | 900,000,000 | 900,000,000 |  |
Common stock, shares outstanding (in shares) | 319,000,000 | 332,000,000 |  |
Treasury stock, shares (in shares) | 581,000,000 | 568,000,000 |  |
Allstate Corporation |  |  |  |
Assets |  |  |  |
Investments in subsidiaries | $ 33,428 | $ 29,301 |  |
Fixed income securities, at fair value (amortized cost $458 and $355) | 466 | 356 |  |
Short-term investments | 702 | 285 |  |
Cash | 2 | 0 | $ 0 | $ 2
Receivable from subsidiaries | 448 | 426 |  |
Deferred income taxes | 230 | 225 |  |
Other assets | 86 | 92 |  |
Total assets | 35,362 | 30,685 |  |
Liabilities |  |  |  |
Long-term debt | 6,631 | 6,451 |  |
Pension and other postretirement benefit obligations | 1,081 | 1,050 |  |
Deferred compensation | 327 | 281 |  |
Payable to subsidiaries | 14 | 3 |  |
Notes due to subsidiaries | 1,000 | 1,250 |  |
Dividends payable to shareholders | 199 | 198 |  |
Other liabilities | 112 | 140 |  |
Total liabilities | 9,364 | 9,373 |  |
Shareholders’ equity |  |  |  |
Preferred stock and additional capital paid-in, $1 par value, 25 million shares authorized, 92.5 thousand and 79.8 thousand shares issued and outstanding, $2,313 and $1,995 aggregate liquidation preference | 2,248 | 1,930 |  |
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 319 million and 332 million shares outstanding | 9 | 9 |  |
Additional capital paid-in | 3,463 | 3,310 |  |
Retained income | 48,074 | 44,033 |  |
Deferred Employee Stock Ownership Plan (“ESOP”) expense | 0 | (3) |  |
Treasury stock, at cost (581 million and 568 million shares) | (29,746) | (28,085) |  |
Accumulated other comprehensive income: |  |  |  |
Unrealized net capital gains and losses | 1,887 | (2) |  |
Unrealized foreign currency translation adjustments | (59) | (49) |  |
Unamortized pension and other postretirement prior service credit | 122 | 169 |  |
Total accumulated other comprehensive income | 1,950 | 118 |  |
Total shareholders’ equity | 25,998 | 21,312 |  |
Total liabilities and shareholders’ equity | 35,362 | 30,685 |  |
Additional balance sheet disclosures: |  |  |  |
Fixed income securities, at fair value, amortized cost (in dollars) | 458 | 355 |  |
Short-term, at fair value, amortized cost (in dollars) | $ 702 | $ 285 |  |
Preferred stock, par value (in dollars per share) | $ 1 | $ 1 |  |
Preferred stock, shares authorized (in shares) | 25,000,000 | 25,000,000 |  |
Preferred stock, shares issued (in shares) | 92,500 | 79,800 |  |
Preferred stock, shares outstanding (in shares) | 92,500 | 79,800 |  |
Preferred stock, shares aggregate liquidation preference (in dollars) | $ 2,313 | $ 1,995 |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |  |
Common stock, shares authorized (in shares) | 2,000,000,000.0 | 2,000,000,000.0 |  |
Common stock, shares issued (in shares) | 900,000,000 | 900,000,000 |  |
Common stock, shares outstanding (in shares) | 319,000,000 | 332,000,000 |  |
Treasury stock, shares (in shares) | 581,000,000 | 568,000,000 |  |

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