Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Segment And Geographic Information (Geographic Information) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 16,070	$ 14,827	$ 14,943	$ 14,988	$ 16,501	$ 15,832	$ 15,629	$ 14,384	$ 60,828	$ 62,346	$ 67,702
Long-Lived Assets	10,138				9,758				10,138	9,758
UNITED STATES
Segment Reporting Information [Line Items]
Revenues									27,894	29,419	31,828
Long-Lived Assets	6,767				6,763				6,767	6,763
Switzerland [Member]
Segment Reporting Information [Line Items]
Revenues									14,095	13,413	11,681
CAYMAN ISLANDS
Segment Reporting Information [Line Items]
Revenues									4,189	3,617	4,456
GERMANY
Segment Reporting Information [Line Items]
Revenues									2,090	2,341	3,436
Other Foreign [Member]
Segment Reporting Information [Line Items]
Revenues									12,560	13,556	$ 16,301
Long-Lived Assets	$ 3,371				$ 2,995				$ 3,371	$ 2,995