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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 | Cumulative effect adjustment in period of adoption Retained Earnings
--- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | $ 4,972 | $ 4,970 |  | $ 1,334 | $ 3,588 | $ 48 | $ 2 |
Beginning Balance, shares at Dec. 31, 2018 |  |  | 89,291,724 |  |  |  |  |
Beginning Balance at Dec. 31, 2018 | 4,972 | 4,970 |  | 1,334 | 3,588 | 48 | 2 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | 5,665 | 5,665 |  | 1,346 | 3,875 | 444 | 0 |
Net earnings (losses) attributable to parent | 329 | 329 |  |  | 329 |  |  |
Net earnings (losses) including portion attributable to nonredeemable noncontrolling interest | 329 |  |  |  |  |  | 0 |
Other comprehensive income (loss), attributable to parent |  | 396 |  |  |  | 396 |  |
Other comprehensive income (loss) including portion attributable to nonredeemable noncontrolling interest | 396 |  |  |  |  |  |  |
Dividends | (36) | (36) |  |  | (36) |  |  |
Shares issued: |  |  |  |  |  |  |  |
Exercise of stock options, shares |  |  | 152,253 |  |  |  |  |
Exercise of stock options | 6 | 6 |  | 6 |  |  |  |
Restricted stock awards, shares |  |  | 232,565 |  |  |  |  |
Other benefit plans, shares |  |  | 11,062 |  |  |  |  |
Other benefit plans | 1 | 1 |  | 1 |  |  |  |
Dividend reinvestment plan, shares |  |  | 1,893 |  |  |  |  |
Stock-based compensation expense | 6 | 6 |  | 6 |  |  |  |
Shares exchanged — benefit plans, shares |  |  | (43,470) |  |  |  |  |
Shares exchanged — benefit plans | (4) | (4) |  | (1) | (3) |  |  |
Forfeitures of restricted stock, shares |  |  | (8,314) |  |  |  |  |
Other | (5) | (3) |  |  | (3) |  | (2) |
Ending Balance, shares at Mar. 31, 2019 |  |  | 89,637,713 |  |  |  |  |
Ending Balance at Mar. 31, 2019 | 5,665 | 5,665 |  | 1,346 | 3,875 | 444 | 0 |
Beginning Balance, Redeemable Noncontrolling Interests at Dec. 31, 2018 | 0 |  |  |  |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract] |  |  |  |  |  |  |  |
Net earnings attributable to redeemable noncontrolling interests | (3) |  |  |  |  |  |  |
Other | 3 |  |  |  |  |  |  |
Ending Balance, Redeemable Noncontrolling Interests at Mar. 31, 2019 | 0 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | 5,665 | 5,665 |  | 1,346 | 3,875 | 444 | 0 |
Cumulative effect of accounting change | $ 6,269 | 6,269 |  | 1,397 | 4,009 | 863 | 0 |
Beginning Balance, shares at Dec. 31, 2019 | 90,303,686 |  | 90,303,686 |  |  |  |  |
Beginning Balance at Dec. 31, 2019 | $ 6,269 | 6,269 |  | 1,397 | 4,009 | 863 | 0 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | 5,047 | 5,047 |  | 1,399 | 3,616 | 32 | 0 |
Cumulative effect of accounting change | Accounting Standards Update 2016-13 |  |  |  |  |  |  |  | $ 7
Net earnings (losses) attributable to parent | (301) | (301) |  |  | (301) |  |  |
Net earnings (losses) including portion attributable to nonredeemable noncontrolling interest | (301) |  |  |  |  |  | 0 |
Other comprehensive income (loss), attributable to parent |  | (831) |  |  |  | (831) |  |
Other comprehensive income (loss) including portion attributable to nonredeemable noncontrolling interest | (831) |  |  |  |  |  |  |
Dividends | (40) | (40) |  |  | (40) |  |  |
Shares issued: |  |  |  |  |  |  |  |
Exercise of stock options, shares |  |  | 204,093 |  |  |  |  |
Exercise of stock options | 9 | 9 |  | 9 |  |  |  |
Restricted stock awards, shares |  |  | 227,867 |  |  |  |  |
Other benefit plans, shares |  |  | 14,541 |  |  |  |  |
Other benefit plans | 1 | 1 |  | 1 |  |  |  |
Dividend reinvestment plan, shares |  |  | 1,617 |  |  |  |  |
Dividend reinvestment plan | 0 | 0 |  | 0 |  |  |  |
Stock-based compensation expense | 6 | 6 |  | 6 |  |  |  |
Shares acquired and retired, shares |  |  | (826,283) |  |  |  |  |
Shares acquired and retired | (61) | (61) |  | (12) | (49) |  |  |
Shares exchanged — benefit plans, shares |  |  | (95,854) |  |  |  |  |
Shares exchanged — benefit plans | (11) | (11) |  | (2) | (9) |  |  |
Forfeitures of restricted stock, shares |  |  | (2,331) |  |  |  |  |
Other | $ (1) | (1) |  |  | (1) |  | 0 |
Ending Balance, shares at Mar. 31, 2020 | 89,827,336 |  | 89,827,336 |  |  |  |  |
Ending Balance at Mar. 31, 2020 | $ 5,047 | 5,047 |  | 1,399 | 3,616 | 32 | 0 |
Ending Balance (Accounting Standards Update 2016-13) at Mar. 31, 2020 |  |  |  |  |  |  |  | 7
Beginning Balance, Redeemable Noncontrolling Interests at Dec. 31, 2019 | 0 |  |  |  |  |  |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract] |  |  |  |  |  |  |  |
Net earnings attributable to redeemable noncontrolling interests | (3) |  |  |  |  |  |  |
Other comprehensive income (loss) attributable to redeemable noncontrolling interests | 2 |  |  |  |  |  |  |
Other | 1 |  |  |  |  |  |  |
Ending Balance, Redeemable Noncontrolling Interests at Mar. 31, 2020 | 0 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative effect of accounting change | $ 5,047 | $ 5,047 |  | $ 1,399 | $ 3,616 | $ 32 | $ 0 |
Cumulative effect of accounting change | Accounting Standards Update 2016-13 |  |  |  |  |  |  |  | $ 7

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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: 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=6877327&loc=d3e13212-122682 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=6877327&loc=d3e13212-122682 Reference 3: 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 4: 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=27012166&loc=d3e187085-122770 + 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=6877327&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=27012166&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=6877327&loc=d3e13212-122682 + Details
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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. Alternate caption for the concept is permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683 + Details
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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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