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Changes in Accumulated Other Comprehensive (Loss) Income (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Changes in Other Comprehensive income |  |  |  |
Balances as of start of period |  |  | $ (1,426,000,000) |
Pension and other postretirement benefit gains | (7,000,000) | (6,000,000) | (48,000,000) | (60,000,000)
Balances as of end of period | (1,542,000,000) |  | (1,542,000,000) |
Accumulated Other Comprehensive (Loss) Income [Member] |  |  |  |
Changes in Other Comprehensive income |  |  |  |
Balances as of start of period | (1,371,000,000) | (1,308,000,000) | (1,426,000,000) | (927,000,000)
Net unrealized gains (losses) | 2,000,000 | (25,000,000) | 102,000,000 | (141,000,000)
Increase (decrease) due to amounts reclassified into earnings | (12,000,000) | (23,000,000) | (66,000,000) | (69,000,000)
Net translation gain (losses) of investments in foreign operations | (414,000,000) | 134,000,000 | (313,000,000) | (422,000,000)
Net (losses) gains related to hedges of investment in foreign operations | 246,000,000 | (123,000,000) | 113,000,000 | 160,000,000
Pension and other postretirement benefit gains | 7,000,000 | 6,000,000 | 48,000,000 | 60,000,000
Net change in accumulated other comprehensive income (loss) | (171,000,000) | (31,000,000) | (116,000,000) | (412,000,000)
Balances as of end of period | (1,542,000,000) | (1,339,000,000) | (1,542,000,000) | (1,339,000,000)
Net Unrealized Investment Gains (Losses) on Investment Securities [Member] |  |  |  |
Changes in Other Comprehensive income |  |  |  |
Balances as of start of period | 105,000,000 | 153,000,000 | 63,000,000 | 315,000,000
Net unrealized gains (losses) | 2,000,000 | (25,000,000) | 102,000,000 | (141,000,000)
Increase (decrease) due to amounts reclassified into earnings | (13,000,000) | (23,000,000) | (71,000,000) | (69,000,000)
Net change in accumulated other comprehensive income (loss) | (11,000,000) | (48,000,000) | 31,000,000 | (210,000,000)
Balances as of end of period | 94,000,000 | 105,000,000 | 94,000,000 | 105,000,000
Foreign Currency Translation Adjustments [Member] |  |  |  |
Changes in Other Comprehensive income |  |  |  |
Balances as of start of period | (1,118,000,000) | (1,027,000,000) | (1,090,000,000) | (754,000,000)
Increase (decrease) due to amounts reclassified into earnings | 1,000,000 | 0 | 5,000,000 | 0
Net translation gain (losses) of investments in foreign operations | (414,000,000) | 134,000,000 | (313,000,000) | (422,000,000)
Net (losses) gains related to hedges of investment in foreign operations | 246,000,000 | (123,000,000) | 113,000,000 | 160,000,000
Net change in accumulated other comprehensive income (loss) | (167,000,000) | 11,000,000 | (195,000,000) | (262,000,000)
Balances as of end of period | (1,285,000,000) | (1,016,000,000) | (1,285,000,000) | (1,016,000,000)
Net Unrealized Pension and Other Postretirement Benefit Losses [Member] |  |  |  |
Changes in Other Comprehensive income |  |  |  |
Balances as of start of period | (358,000,000) | (434,000,000) | (399,000,000) | (488,000,000)
Pension and other postretirement benefit gains | 7,000,000 | 6,000,000 | 48,000,000 | 60,000,000
Net change in accumulated other comprehensive income (loss) | 7,000,000 | 6,000,000 | 48,000,000 | 60,000,000
Balances as of end of period | $ (351,000,000) | $ (428,000,000) | $ (351,000,000) | $ (428,000,000)

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- Definition Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of tax. + References No definition available. + Details
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