Changes in Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Changes in Other Comprehensive income
Balances as of January 1	$ (927)
Net unrealized pension and other post retirement benefit gains (losses), net of tax	89	(7)	(17)
Balances as of December 31	(1,426)	(927)
Tax impact for the changes in each component of accumulated other comprehensive (loss) income
Investment securities	(142)	7	149
Cash flow hedges	0	1	3
Foreign currency translation adjustments	(49)	24	(40)
Net investment hedges	135	(176)	(14)
Pension and other postretirement benefit losses	56	0	(7)
Total tax impact	0	(144)	91
Accumulated Other Comprehensive (Loss) Income [Member]
Changes in Other Comprehensive income
Balances as of January 1	(927)	(876)	(917)
Net unrealized gains (losses)	(159)	106	243
Reclassification for realized (gains) losses into earnings	(93)	(77)	(6)
Net translation of investments in foreign operations	(589)	215	(153)
Net gains (losses) related to hedges of investment in foreign operations	253	(288)	(26)
Net unrealized pension and other post retirement benefit gains (losses), net of tax	89	(7)	(17)
Net change in accumulated other comprehensive (loss) income	(499)	(51)	41
Balances as of December 31	(1,426)	(927)	(876)
Net Unrealized Investment Gains (Losses) on Investment Securities [Member]
Changes in Other Comprehensive income
Balances as of January 1	315	288	57
Net unrealized gains (losses)	(159)	106	245
Reclassification for realized (gains) losses into earnings	(93)	(79)	(14)
Net change in accumulated other comprehensive (loss) income	(252)	27	231
Balances as of December 31	63	315	288
Net Unrealized Gains (Losses) on Cash Flow Hedges [Member]
Changes in Other Comprehensive income
Balances as of January 1	0	(1)	(7)
Net unrealized gains (losses)			(2)
Reclassification for realized (gains) losses into earnings		1	8
Net change in accumulated other comprehensive (loss) income	0	1	6
Balances as of December 31	0	0	(1)
Foreign Currency Translation Adjustments [Member]
Changes in Other Comprehensive income
Balances as of January 1	(754)	(682)	(503)
Reclassification for realized (gains) losses into earnings		1
Net translation of investments in foreign operations	(589)	215	(153)
Net gains (losses) related to hedges of investment in foreign operations	253	(288)	(26)
Net change in accumulated other comprehensive (loss) income	(336)	(72)	(179)
Balances as of December 31	(1,090)	(754)	(682)
Net Unrealized Pension and Other Postretirement Benefit Losses [Member]
Changes in Other Comprehensive income
Balances as of January 1	(488)	(481)	(464)
Net unrealized pension and other post retirement benefit gains (losses), net of tax	89	(7)	(17)
Net change in accumulated other comprehensive (loss) income	89	(7)	(17)
Balances as of December 31	$ (399)	$ (488)	$ (481)

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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.

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Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments.

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This item represents the gains and losses, net of tax, associated with the Company's hedges of investment in foreign operations that has been included in a separate component of shareholders' equity during the period.

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Tax effect on net change of net investment hedges during the period.

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The total net unrealized holding gains (losses) that has been included as a separate component of other comprehensive income (loss) during the period.

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The total realized gains (losses) that has been included as a separate component of shareholders' equity during the period.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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