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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 443 | $ 348 | $ 1,256 | $ 986
Other comprehensive (loss) income: |  |  |  |
Net unrealized derivative instrument (losses) gains arising during the periods, net of income taxes of ($9), ($1), ($31) and $13, respectively | (26) | (1) | (91) | 22
Reclassification adjustment for net derivative losses (gains) included in net income, net of income taxes of $3, ($2), $6 and ($8), respectively | 11 | (2) | 19 | (13)
Net unrealized debt securities (losses) gains arising during the periods, net of income taxes of ($34), $8, ($139) and $44, respectively | (95) | 13 | (427) | 74
Other-than-temporary impairment not recognized in earnings on debt securities, net of income taxes of ($1), $0, ($1) and ($1), respectively | 0 | 0 | (1) | (2)
Reclassification of net debt securities gains to net income, net of income taxes of $0, $0, ($2) and ($1), respectively | (2) | (1) | (8) | (2)
Amortization of actuarial loss, net of income taxes of $1, $2, $3 and $6, respectively | 4 | 3 | 10 | 8
Total other comprehensive (loss) income, net of income taxes | (108) | 12 | (498) | 87
Total comprehensive income | $ 335 | $ 360 | $ 758 | $ 1,073

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