Contingencies, Commitments and Guarantees (details) - Loss Contingencies (Asbestos Direct Action Litigation [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
Jan. 31, 2015
Asbestos Direct Action Litigation [Member]
Loss Contingencies
Settlement amount	$ 502
Total settlement amount	579
Interest related to settlement award	$ 77

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration