hanges to shareholders’ equity for the three months ended March 31, 2016 and 2015 were as follows: | | | | | | | | | | | | | ($ in millions) | Total PPG Shareholders’ Equity | | Non- controlling Interests | | Total | Balance, January 1, 2016 | $ | 4,983 |
| | $ | 86 |
| | $ | 5,069 |
| Net income | 347 |
| | 7 |
| | 354 |
| Other comprehensive income, net of tax | 59 |
| | (3 | ) | | 56 |
| Cash dividends | (96 | ) | | — |
| | (96 | ) | Issuance of treasury stock | 34 |
| | — |
| | 34 |
| Stock repurchase program | (150 | ) | | — |
| | (150 | ) | Stock-based compensation activity | (16 | ) | | — |
| | (16 | ) | Other | — |
| | (3 | ) | | (3 | ) | Balance, March 31, 2016 | $ | 5,161 |
| | $ | 87 |
| | $ | 5,248 |
|
| | | | | | | | | | | | | ($ in millions) | Total PPG Shareholders’ Equity | | Non- controlling Interests | | Total | Balance, January 1, 2015 | $ | 5,180 |
| | $ | 85 |
| | $ | 5,265 |
| Net income | 322 |
| | 5 |
| | 327 |
| Other comprehensive income, net of tax | (193 | ) | | (5 | ) | | (198 | ) | Cash dividends | (91 | ) | | — |
| | (91 | ) | Issuance of treasury stock | 58 |
| | — |
| | 58 |
| Stock repurchase program | (200 | ) | | — |
| | (200 | ) | Stock-based compensation activity | 2 |
| | — |
| | 2 |
| Other | — |
| | (5 | ) | | (5 | ) | Balance, March 31, 2015 | $ | 5,078 |
| | $ | 80 |
| | $ | 5,158 |
|
|