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Consolidated Statements of Equity - USD ($) $ in Millions | Total | Valero Energy Partners LP [Member] | Entities Other Than Valero Energy Partners LP [Member] | Parent [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Non-controlling Interests [Member] | Non-controlling Interests [Member] Valero Energy Partners LP [Member] | Non-controlling Interests [Member] Entities Other Than Valero Energy Partners LP [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2014 | $ 21,244 |  |  | $ 20,677 | $ 7 | $ 7,116 | $ (8,125) | $ 22,046 | $ (367) | $ 567 |  |
Increase (Decrease) in Equity Roll Forward |  |  |  |  |  |  |  |  |  |  |  |
Net income | 4,101 |  |  | 3,990 |  |  |  | 3,990 |  | 111 |  |
Dividends on common stock | (848) |  |  | (848) |  |  |  | (848) |  |  |  |
Stock-based compensation expense | 59 |  |  | 59 |  | 59 |  |  |  |  |  |
Tax deduction in excess of stock- based compensation expense | 44 |  |  | 44 |  | 44 |  |  |  |  |  |
Transactions in connection with stock-based compensation plans | (162) |  |  | (162) |  | (155) | (7) |  |  |  |  |
Stock purchases under purchase program | (2,667) |  |  | (2,667) |  |  | (2,667) |  |  |  |  |
Issuance of Valero Energy Partners LP common units and contributions from noncontrolling interests |  | $ 189 | $ 5 |  |  |  |  |  |  |  | $ 189 | $ 5
Distributions to noncontrolling interests | (45) |  |  |  |  |  |  |  |  | (45) |  |
Other comprehensive income (loss) | (566) |  |  | (566) |  |  |  |  | (566) | 0 |  |
Ending balance at Dec. 31, 2015 | 21,354 |  |  | 20,527 | 7 | 7,064 | (10,799) | 25,188 | (933) | 827 |  |
Increase (Decrease) in Equity Roll Forward |  |  |  |  |  |  |  |  |  |  |  |
Net income | 2,417 |  |  | 2,289 |  |  |  | 2,289 |  | 128 |  |
Dividends on common stock | (1,111) |  |  | (1,111) |  |  |  | (1,111) |  |  |  |
Stock-based compensation expense | 68 |  |  | 68 |  | 68 |  |  |  |  |  |
Transactions in connection with stock-based compensation plans | (55) |  |  | (55) |  | (89) | 34 |  |  |  |  |
Stock purchases under purchase program | (1,262) |  |  | (1,262) |  |  | (1,262) |  |  |  |  |
Issuance of Valero Energy Partners LP common units and contributions from noncontrolling interests |  | 11 |  |  |  |  |  |  |  |  | 11 |
Distributions to noncontrolling interests | (65) |  |  |  |  |  |  |  |  | (65) |  |
Other | (27) |  |  | 45 |  | 45 |  | 0 |  | (72) |  |
Other comprehensive income (loss) | (476) |  |  | (477) |  |  |  |  | (477) | 1 |  |
Ending balance at Dec. 31, 2016 | 20,854 |  |  | 20,024 | 7 | 7,088 | (12,027) | 26,366 | (1,410) | 830 |  |
Increase (Decrease) in Equity Roll Forward |  |  |  |  |  |  |  |  |  |  |  |
Net income | 4,156 |  |  | 4,065 |  |  |  | 4,065 |  | 91 |  |
Dividends on common stock | (1,242) |  |  | (1,242) |  |  |  | (1,242) |  |  |  |
Stock-based compensation expense | 68 |  |  | 68 |  | 68 |  |  |  |  |  |
Transactions in connection with stock-based compensation plans | (63) |  |  | (63) |  | (82) | 19 |  |  |  |  |
Stock purchases under purchase program | (1,307) |  |  | (1,307) |  |  | (1,307) |  |  |  |  |
Issuance of Valero Energy Partners LP common units and contributions from noncontrolling interests |  | $ 33 | $ 30 |  |  |  |  |  |  |  | $ 33 | $ 30
Distributions to noncontrolling interests | (67) |  |  |  |  |  |  |  |  | (67) |  |
Other | (32) |  |  | (24) |  | (35) |  | 11 |  | (8) |  |
Other comprehensive income (loss) | 470 |  |  | 470 |  |  |  |  | 470 | 0 |  |
Ending balance at Dec. 31, 2017 | $ 22,900 |  |  | $ 21,991 | $ 7 | $ 7,039 | $ (13,315) | $ 29,200 | $ (940) | $ 909 |  |

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