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Closed Block (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Change in the maximum future earnings of the closed block
Balance at December 31,	$ 4,273	$ 4,441	$ 4,587
Closed block adjustment	0	0	144
Balance at January 1,	4,441	4,587	4,518
Change during year	$ (168)	$ (146)	$ (75)

The carrying amount of closed block liabilities in excess of the carrying amount of closed block assets at the date of demutualization (adjusted to eliminate the impact of related amounts in accumulated other comprehensive income).

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- Definition

The net income or loss from operations of the closed block during the period.

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