Sales Inducements (Details) (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Changes in deferred sales inducement
Balance, January 1	$ 459	$ 438
Sales inducements deferred	9	15
Amortization	(20)	(13)
Amortization - Unlock charge, pre-tax	(8)	(15)
Balance, June 30	$ 440	$ 425

Amortization Unlock.

The amount of deferred sales inducement costs capitalized during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-1
-Paragraph 39

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The amount of deferred sales inducement costs charged against earnings during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-1
-Paragraph 39

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The unamortized carrying amount of deferred sales inducement costs as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 03-1
-Paragraph 39

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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