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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions | Total | Cameron | Common Stock Issued | Common Stock Issued Cameron | Common Stock In Treasury | Common Stock In Treasury Cameron | Retained Earnings | Accumulated Other Comprehensive Loss | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ 35,905 |  | $ 12,693 |  | $ (13,372) |  | $ 40,870 | $ (4,558) | $ 272
Balance, shares at Dec. 31, 2015 | 1,256 |  | 1,434 |  |  |  |  |  |
Treasury shares, Balance at Dec. 31, 2015 |  |  |  |  | (178) |  |  |  |
Net income (loss) | $ (1,627) |  |  |  |  |  | (1,687) |  | 60
Currency translation adjustments | (83) |  |  |  |  |  |  | (83) |
Changes in unrealized gain on marketable securities | 21 |  |  |  |  |  |  | 21 |
Changes in fair value of cash flow hedges | 20 |  |  |  |  |  |  | 20 |
Pension and other postretirement benefit plans | (43) |  |  |  |  |  |  | (43) |
Shares sold to optionees, less shares exchanged | $ 184 |  | $ (82) |  | $ 266 |  |  |  |
Shares sold to optionees, less shares exchanged, shares | 3 |  |  |  | 3 |  |  |  |
Vesting of restricted stock |  |  | (122) |  | $ 122 |  |  |  |
Vesting of restricted stock, shares | 1 |  |  |  | 1 |  |  |  |
Shares issued under employee stock purchase plan | $ 231 |  | (55) |  | $ 286 |  |  |  |
Shares issued under employee stock purchase plan, shares | 4 |  |  |  | 4 |  |  |  |
Stock repurchase program | $ (778) |  |  |  | $ (778) |  |  |  |
Stock repurchase program, shares | (11) |  |  |  | (11) |  |  |  |
Stock-based compensation expense | $ 267 |  | 267 |  |  |  |  |  |
Dividends declared | (2,713) |  |  |  |  |  | (2,713) |  |
Shares issued for acquisition |  | $ 10,027 |  | $ 103 |  | $ 9,924 |  |  |
Shares issued for acquisition, shares |  | 138 |  |  |  | 138 |  |  |
Acquisition of noncontrolling interest | 106 |  |  |  |  |  |  |  | 106
Other | 12 |  | (3) |  | $ 2 |  |  |  | 13
Balance at Dec. 31, 2016 | $ 41,529 |  | $ 12,801 |  | $ (3,550) |  | 36,470 | (4,643) | 451
Balance, shares at Dec. 31, 2016 | 1,391 |  | 1,434 |  |  |  |  |  |
Treasury shares, Balance at Dec. 31, 2016 |  |  |  |  | (43) |  |  |  |
Net income (loss) | $ (1,513) |  |  |  |  |  | (1,505) |  | (8)
Currency translation adjustments | (3) |  |  |  |  |  |  | (3) |
Changes in unrealized gain on marketable securities | (8) |  |  |  |  |  |  | (8) |
Changes in fair value of cash flow hedges | 22 |  |  |  |  |  |  | 22 |
Pension and other postretirement benefit plans | 358 |  |  |  |  |  |  | 358 |
Shares sold to optionees, less shares exchanged | $ 85 |  | $ (10) |  | $ 95 |  |  |  |
Shares sold to optionees, less shares exchanged, shares | 1 |  |  |  | 1 |  |  |  |
Vesting of restricted stock |  |  | (110) |  | $ 110 |  |  |  |
Vesting of restricted stock, shares | 2 |  |  |  | 2 |  |  |  |
Shares issued under employee stock purchase plan | $ 212 |  | (52) |  | $ 264 |  |  |  |
Shares issued under employee stock purchase plan, shares | 3 |  |  |  | 3 |  |  |  |
Stock repurchase program | $ (969) |  |  |  | $ (969) |  |  |  |
Stock repurchase program, shares | (13) |  |  |  | (13) |  |  |  |
Stock-based compensation expense | $ 343 |  | 343 |  |  |  |  |  |
Dividends declared | (2,775) |  |  |  |  |  | (2,775) |  |
Other | (20) |  | 3 |  | $ 1 |  |  |  | (24)
Balance at Dec. 31, 2017 | $ 37,261 |  | $ 12,975 |  | $ (4,049) |  | 32,190 | (4,274) | 419
Balance, shares at Dec. 31, 2017 | 1,384 |  | 1,434 |  |  |  |  |  |
Treasury shares, Balance at Dec. 31, 2017 |  |  |  |  | (50) |  |  |  |
Net income (loss) | $ 2,177 |  |  |  |  |  | 2,138 |  | 39
Currency translation adjustments | (196) |  |  |  |  |  |  | (191) | (5)
Changes in unrealized gain on marketable securities | (11) |  |  |  |  |  |  | (11) |
Changes in fair value of cash flow hedges | (15) |  |  |  |  |  |  | (15) |
Pension and other postretirement benefit plans | (22) |  |  |  |  |  |  | (22) |
Shares sold to optionees, less shares exchanged | $ 34 |  | $ (41) |  | $ 75 |  |  |  |
Shares sold to optionees, less shares exchanged, shares | 1 |  |  |  | 1 |  |  |  |
Vesting of restricted stock |  |  | (72) |  | $ 72 |  |  |  |
Vesting of restricted stock, shares | 1 |  |  |  | 1 |  |  |  |
Shares issued under employee stock purchase plan | $ 227 |  | (67) |  | $ 294 |  |  |  |
Shares issued under employee stock purchase plan, shares | 3 |  |  |  | 3 |  |  |  |
Stock repurchase program | $ (400) |  |  |  | $ (400) |  |  |  |
Stock repurchase program, shares | (6) |  |  |  | (6) |  |  |  |
Stock-based compensation expense | $ 345 |  | 345 |  |  |  |  |  |
Dividends declared | (2,770) |  |  |  |  |  | (2,770) |  |
Stranded tax related to US pension | (109) |  |  |  |  |  | 109 | (109) |
Other | (44) |  | (8) |  | $ 2 |  | (9) |  | (29)
Balance at Dec. 31, 2018 | $ 36,586 |  | $ 13,132 |  | $ (4,006) |  | $ 31,658 | $ (4,622) | $ 424
Balance, shares at Dec. 31, 2018 | 1,383 |  | 1,434 |  |  |  |  |  |
Treasury shares, Balance at Dec. 31, 2018 |  |  |  |  | (51) |  |  |  |

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