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Changes in Shareholders' Equity (Details 3) - USD ($) shares in Millions, $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Mar. 31, 2019
Stock repurchase program, authorized amount | $ 2,500 |  | $ 2,500
Remaining balance under stock repurchase program | $ 2,700 |  |
Number of shares reacquired through surrender of restricted shares | 0.3 | 0.3 |
Value of shares reacquired through surrender of restricted shares | $ 51 | $ 34 |
Number of shares reacquired through net settlement options | 0.7 | 0.5 |
Aggregate value of shares reacquired through net settlement options | $ 128 | $ 70 |
Treasury shares reissued for restricted stock award grants and Ameriprise Financial Franchise Advisor Deferred Compensation Plan | 0.5 | 0.7 |
Open market share repurchases [Member] |  |  |
Repurchase of common shares (in shares) | 6.3 | 9.8 |
Repurchase of common shares | $ 956 | $ 1,300 |

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- Definition Number of treasury shares (units) reissued during the period to satisfy equity-based compensation obligations exercised by holders of such rights. + References No definition available. + Details
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- Definition Represents the aggregate value of shares reacquired through the net settlement of options during the period to cover the strike price and the holders' income tax obligation on vested shares. + References No definition available. + Details
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- Definition Represents the number of shares reacquired through the net settlement of options during the period to cover the strike price and the holders income tax obligation on vested shares. + References No definition available. + Details
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- Definition This element represents the number of shares reacquired through the surrender of restricted shares during the period to cover the holders income tax obligation on vested shares. + References No definition available. + Details
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- Definition This element represents the value of shares reacquired through the surrender of restricted shares during the period to cover the holders income tax obligation on vested shares. + References No definition available. + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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