Equity - changes in shares of common stock (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Changes in shares of common stock | |||
| Beginning Balance, Common Stock | 1,791,637,434 | 1,785,419,175 | 1,782,079,107 |
| Treasury Stock, Shares, Beginning Balance | 653,288,213 | 608,312,034 | 544,809,771 |
| Repurchase of common stock | 57,495,601 | 44,976,179 | 63,502,263 |
| Distributed under benefit plans | 4,014,769 | 6,218,259 | 3,340,068 |
| Ending Balance, Common Stock | 1,795,652,203 | 1,791,637,434 | 1,785,419,175 |
| Treasury Stock, Shares, Ending Balance | 710,783,814 | 653,288,213 | 608,312,034 |
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- References No definition available.
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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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