Investments Held-to-Maturity (Details) (Time Deposits and Other [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Time Deposits and Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity investments	$ 6

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant