Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2011

Accumulated Other Comprehensive Loss Table [Abstract]

Changes in accumulated other comprehensive income (loss)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
2011
Net unrealized appreciation, securities:
Net unrealized appreciation on securities arising during the year	$	366	$	(127)	$	239
Reclassification adjustment for losses (gains) included in shareholders' net income		(49)		18		(31)
Net unrealized appreciation, securities	$	317	$	(109)	$	208
Net unrealized appreciation, derivatives	$	1	$	-	$	1
Net translation of foreign currencies	$	(21)	$	(1)	$	(22)
Postretirement benefits liability adjustment:
Reclassification adjustment for amortization of net losses from past experience
and prior service costs	$	22	$	(7)	$	15
Net change arising from assumption and plan changes and experience		(580)		205		(375)
Net postretirement benefits liability adjustment	$	(558)	$	198	$	(360)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
2010
Net unrealized appreciation, securities:
Net unrealized appreciation on securities arising during the year	$	319	$	(109)	$	210
Reclassification adjustment for (gains) included in net income		(92)		32		(60)
Net unrealized appreciation, securities	$	227	$	(77)	$	150
Net unrealized appreciation, derivatives	$	8	$	(2)	$	6
Net translation of foreign currencies	$	40	$	(7)	$	33
Postretirement benefits liability adjustment:
Reclassification adjustment for amortization of net losses from past experience
and prior service costs	$	10	$	(4)	$	6
Net change arising from assumption and plan changes and experience		(311)		116		(195)
Net postretirement benefits liability adjustment	$	(301)	$	112	$	(189)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
2009
Net unrealized appreciation, securities:
Net unrealized appreciation on securities arising during the year	$	843	$	(292)	$	551
Reclassification adjustment for (gains) included in net income		(14)		3		(11)
Net unrealized appreciation, securities	$	829	$	(289)	$	540
Net unrealized depreciation, derivatives	$	(30)	$	13	$	(17)
Net translation of foreign currencies	$	54	$	(15)	$	39
Postretirement benefits liability adjustment:
Reclassification adjustment for amortization of net losses from past experience
and prior service costs	$	7	$	(3)	$	4
Curtailment gain		(46)		16		(30)
Reclassification adjustment included in shareholders' net income		(39)		13		(26)
Net change arising from assumption and plan changes and experience		(107)		36		(71)
Net postretirement benefits liability adjustment	$	(146)	$	49	$	(97)