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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 125 | $ 182 | $ 305 | $ 474
Other comprehensive income (loss): |  |  |  |
Unrealized hedging gains (losses) on derivatives | (62) | 15 | (191) | (55)
Reclassification adjustments for derivative (gains) losses included in net income (interest expense) |  |  |  | (1)
Total unrealized gains (losses) on derivatives | (62) | 15 | (191) | (56)
Income tax (expense) benefit | 23 | (5) | 71 | 21
Other comprehensive income (loss), net of tax expense (benefit) | (39) | 10 | (120) | (35)
Total comprehensive income attributable to Navient Corporation | $ 86 | $ 192 | $ 185 | $ 439

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