v3.10.0.1

Accumulated Other Comprehensive Income - Changes in Accumulated Balances of Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), Tax |  |  |  |
Accumulated other comprehensive income (loss), estimated tax (expense) benefit, beginning balance | $ 28 | $ 33 | $ 41 | $ 1
Other comprehensive income (loss) before reclassifications, tax | (1) | 3 | (3) | 35
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income, tax | (3) | 0 | 8 | 0
Net current period other comprehensive income, tax | 2 | 3 | (11) | 35
Accumulated other comprehensive income (loss), estimated tax (expense) benefit, ending balance | 30 | 36 | 30 | 36
Accumulated Other Comprehensive Income (Loss), Net of Tax |  |  |  |
Beginning balance |  |  | 8,049 |
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income | 9 | (11) | (30) | 41
Other comprehensive income/(loss), net of tax | (31) | 101 | (167) | 662
Ending balance | 6,929 |  | 6,929 |
Unrealized Gains (Losses) on Cash Flow Hedges |  |  |  |
Accumulated Other Comprehensive Income (Loss), Before Tax |  |  |  |
Accumulated other comprehensive income (loss), before tax, beginning balance | 51 | (44) | (57) | 54
Other comprehensive income (loss), before reclassifications, before tax | (4) | (31) | 55 | (94)
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income, before tax | 12 | (7) | (37) | 28
Net current period other comprehensive income, before tax | (16) | (24) | 92 | (122)
Accumulated other comprehensive income (loss), before tax, ending balance | 35 | (68) | 35 | (68)
Unrealized Gains on Investments |  |  |  |
Accumulated Other Comprehensive Income (Loss), Before Tax |  |  |  |
Accumulated other comprehensive income (loss), before tax, beginning balance | (53) | 2 | (15) | 51
Other comprehensive income (loss), before reclassifications, before tax | 8 | 3 | (31) | (29)
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income, before tax | 0 | (4) | (1) | 13
Net current period other comprehensive income, before tax | 8 | 7 | (30) | (42)
Accumulated other comprehensive income (loss), before tax, ending balance | (45) | 9 | (45) | 9
Foreign Currency Translation |  |  |  |
Accumulated Other Comprehensive Income (Loss), Before Tax |  |  |  |
Accumulated other comprehensive income (loss), before tax, beginning balance | 555 | 446 | 748 | (230)
Other comprehensive income (loss), before reclassifications, before tax | (25) | 115 | (218) | 791
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income, before tax | 0 | 0 | 0 | 0
Net current period other comprehensive income, before tax | (25) | 115 | (218) | 791
Accumulated other comprehensive income (loss), before tax, ending balance | 530 | 561 | 530 | 561
Total |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax |  |  |  |
Beginning balance | 581 | 437 | 717 | (124)
Other comprehensive income (loss) before reclassifications | (22) | 90 | (197) | 703
Less: Amount of gain (loss) reclassified from accumulated other comprehensive income | 9 | (11) | (30) | 41
Other comprehensive income/(loss), net of tax | (31) | 101 | (167) | 662
Ending balance | $ 550 | $ 538 | $ 550 | $ 538

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