The following table shows the activity impacting the representation and warranty reserve: | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2016 | 2015 | | 2016 | 2015 | | (Dollars in millions) | Balance, beginning of period | $ | 40 |
| $ | 53 |
| | $ | 40 |
| $ | 53 |
| Provision (release) | | | | | | | Charged to gain on sale for current loan sales | 1 |
| 2 |
| | 3 |
| 4 |
| | Charged to representation and warranty benefit | (4 | ) | (5 | ) | | (6 | ) | (7 | ) | | Total | (3 | ) | (3 | ) | | (3 | ) | (3 | ) | Charge-offs, net | (1 | ) | (2 | ) | | (1 | ) | (2 | ) | Balance, end of period | $ | 36 |
| $ | 48 |
| | $ | 36 |
| $ | 48 |
|
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The following table shows the activity in the representation and warranty reserve. | | | | | | | | | | | | | | For the Years Ended December 31, | | 2015 | | 2014 | | 2013 | | (Dollars in millions) | Balance, beginning of period, | $ | 53 |
| | $ | 54 |
| | $ | 193 |
| Provision | | | | | | Charged to gain on sale for current loan sales | 7 |
| | 7 |
| | 18 |
| Charged to representation and warranty (benefit) provision | (19 | ) | | 10 |
| | 36 |
| Total | (12 | ) | | 17 |
| | 54 |
| Charge-offs, net | (1 | ) | | (18 | ) | | (193 | ) | Balance, end of period | $ | 40 |
| | $ | 53 |
| | $ | 54 |
|
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