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Consolidated Statement of Equity - USD ($) shares in Thousands, $ in Millions | Total | Parent [Member] | Preferred Stock | Common Stock | Capital in Excess of Par | Retained Earnings | Accumulated Other Comprehensive Loss | Currency translation adjustment | Unrealized net holding (loss) gain on securities | Net derivatives (loss) gain on hedge transactions | Pension and other postretirement benefit plans | Deferred Compensation and Benefit Plan Trust | Benefit Plan Trust (Common Stock) | Treasury Stock at Cost | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at January 1 (in shares) at Dec. 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  | 563,028 |
Balance at January 1 at Dec. 31, 2014 |  |  |  |  | $ 16,041 | $ 184,987 |  | $ (96) | $ (8) | $ (2) | $ (4,753) |  |  | $ (42,733) | $ 1,163
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Chevron Corporation | $ 4,587 |  |  |  |  | 4,587 |  |  |  |  |  |  |  |  |
Cash dividends on common stock |  |  |  |  |  | (7,992) |  |  |  |  |  |  |  |  |
Stock dividends |  |  |  |  |  | (3) |  |  |  |  |  |  |  |  |
Tax (charge) benefit from dividends paid on unallocated ESOP shares and other |  |  |  |  |  | (1) |  |  |  |  |  |  |  |  |
Change during year | 568 |  |  |  |  |  |  | (44) | (21) | 0 | 633 |  |  |  |
Purchases (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 |
Purchases |  |  |  |  | 289 |  |  |  |  |  |  |  |  | $ (2) |
Issuances - mainly employee benefit plans (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,180) |
Issuances - mainly employee benefit plans |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 242 |
Balance at December 31 (in shares) at Dec. 31, 2015 |  |  | 0 | 2,442,677 |  |  |  |  |  |  |  | 14,168 | 14,168 | 559,863 |
Balance at December 31 at Dec. 31, 2015 | 153,886 | $ 152,716 | $ 0 | $ 1,832 | 16,330 | 181,578 | $ (4,291) | (140) | (29) | (2) | (4,120) | $ (240) | $ (240) | $ (42,493) | 1,170
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Chevron Corporation | (497) |  |  |  |  | (497) |  |  |  |  |  |  |  |  |
Cash dividends on common stock |  |  |  |  |  | (8,032) |  |  |  |  |  |  |  |  |
Stock dividends |  |  |  |  |  | (3) |  |  |  |  |  |  |  |  |
Tax (charge) benefit from dividends paid on unallocated ESOP shares and other |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Change during year | 448 |  |  |  |  |  |  | (22) | 27 | 0 | 443 |  |  |  |
Purchases (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |
Purchases |  |  |  |  | 265 |  |  |  |  |  |  |  |  | $ (2) |
Issuances - mainly employee benefit plans (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | (8,713) |
Issuances - mainly employee benefit plans |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 661 |
Balance at December 31 (in shares) at Dec. 31, 2016 |  |  | 0 | 2,442,677 |  |  |  |  |  |  |  | 14,168 | 14,168 | 551,170 |
Balance at December 31 at Dec. 31, 2016 | 146,722 | 145,556 | $ 0 | $ 1,832 | 16,595 | 173,046 | (3,843) | (162) | (2) | (2) | (3,677) | $ (240) | $ (240) | $ (41,834) | 1,166
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to Chevron Corporation | 9,195 |  |  |  |  | 9,195 |  |  |  |  |  |  |  |  |
Cash dividends on common stock |  |  |  |  |  | (8,132) |  |  |  |  |  |  |  |  |
Stock dividends |  |  |  |  |  | (3) |  |  |  |  |  |  |  |  |
Tax (charge) benefit from dividends paid on unallocated ESOP shares and other |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Change during year | 254 |  |  |  |  |  | 254 | 57 | (3) | 0 | 200 |  |  |  |
Purchases (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |
Purchases |  |  |  |  | 253 |  |  |  |  |  |  |  |  | $ (1) |
Issuances - mainly employee benefit plans (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | (13,205) |
Issuances - mainly employee benefit plans |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,002 |
Balance at December 31 (in shares) at Dec. 31, 2017 |  |  | 0 | 2,442,677 |  |  |  |  |  |  |  | 14,168 | 14,168 | 537,975 |
Balance at December 31 at Dec. 31, 2017 | $ 149,319 | $ 148,124 | $ 0 | $ 1,832 | $ 16,848 | $ 174,106 | $ (3,589) | $ (105) | $ (5) | $ (2) | $ (3,477) | $ (240) | $ (240) | $ (40,833) | $ 1,195

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