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Consolidated Statements of Equity - USD ($) $ in Millions | Total | Stock-Based Compensation Plans Repurchase Program [Member] | Common Stock Repurchase Program [Member] | Parent [Member] | Parent [Member] Stock-Based Compensation Plans Repurchase Program [Member] | Parent [Member] Common Stock Repurchase Program [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Treasury Stock [Member] Stock-Based Compensation Plans Repurchase Program [Member] | Treasury Stock [Member] Common Stock Repurchase Program [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2012 | $ 18,095 |  |  | $ 18,032 |  |  | $ 7 | $ 7,322 | $ (6,437) |  |  | $ 17,032 | $ 108 | $ 63
Increase (Decrease) in Equity Roll Forward |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 2,728 |  |  | 2,720 |  |  |  |  |  |  |  | 2,720 |  | 8
Dividends on common stock | (462) |  |  | (462) |  |  |  |  |  |  |  | (462) |  |
Stock-based compensation expense | 64 |  |  | 64 |  |  |  | 64 |  |  |  |  |  |
Tax deduction in excess of stock- based compensation expense | 47 |  |  | 47 |  |  |  | 47 |  |  |  |  |  |
Transactions in connection with stock-based compensation plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issuances | 59 |  |  | 59 |  |  |  | (243) | 302 |  |  |  |  |
Stock purchases |  | $ (236) | $ (692) |  | $ (236) | $ (692) |  |  |  | $ (236) | $ (692) |  |  |
Separation of retail business | (479) |  |  | (479) |  |  |  | (9) | 9 |  |  | (320) | (159) |
Net proceeds from issuance of Valero Energy Partners LP common units | 369 |  |  |  |  |  |  |  |  |  |  |  |  | 369
Contributions from noncontrolling interests | 46 |  |  |  |  |  |  |  |  |  |  |  |  | 46
Other | 6 |  |  | 6 |  |  |  | 6 |  |  |  |  |  |
Other comprehensive income (loss) | 401 |  |  | 401 |  |  |  |  |  |  |  |  | 401 |
Ending balance at Dec. 31, 2013 | 19,946 |  |  | 19,460 |  |  | 7 | 7,187 | (7,054) |  |  | 18,970 | 350 | 486
Increase (Decrease) in Equity Roll Forward |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 3,711 |  |  | 3,630 |  |  |  |  |  |  |  | 3,630 |  | 81
Dividends on common stock | (554) |  |  | (554) |  |  |  |  |  |  |  | (554) |  |
Stock-based compensation expense | 60 |  |  | 60 |  |  |  | 60 |  |  |  |  |  |
Tax deduction in excess of stock- based compensation expense | 47 |  |  | 47 |  |  |  | 47 |  |  |  |  |  |
Transactions in connection with stock-based compensation plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issuances | 47 |  |  | 47 |  |  |  | (178) | 225 |  |  |  |  |
Stock purchases |  | (128) | (1,168) |  | (128) | (1,168) |  |  |  | (128) | (1,168) |  |  |
Contributions from noncontrolling interests | 12 |  |  |  |  |  |  |  |  |  |  |  |  | 12
Distributions to noncontrolling interests | (12) |  |  |  |  |  |  |  |  |  |  |  |  | (12)
Other comprehensive income (loss) | (717) |  |  | (717) |  |  |  |  |  |  |  |  | (717) |
Ending 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: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issuances | 34 |  |  | 34 |  |  |  | (155) | 189 |  |  |  |  |
Stock purchases |  | $ (196) | $ (2,667) |  | $ (196) | $ (2,667) |  |  |  | $ (196) | $ (2,667) |  |  |
Net proceeds from issuance of Valero Energy Partners LP common units | 189 |  |  |  |  |  |  |  |  |  |  |  |  | 189
Contributions from noncontrolling interests | 5 |  |  |  |  |  |  |  |  |  |  |  |  | 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

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