Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2016

Accumulated Other Comprehensive Income (Loss) [Abstract]

Changes in accumulated other comprehensive income (loss)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
Three Months Ended June 30,
2016
Net unrealized appreciation, securities, April 1,	$	867	$	(276)	$	591
Unrealized appreciation on securities arising during the period		285		(97)		188
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(17)		6		(11)
Net unrealized appreciation, securities arising during the period		268		(91)		177
Net unrealized appreciation, securities, June 30,	$	1,135	$	(367)	$	768
Net unrealized appreciation, derivatives, April 1,	$	6	$	(2)	$	4
Unrealized (depreciation) on derivatives arising during the period		(1)		-		(1)
Net unrealized appreciation, derivatives, June 30,	$	5	$	(2)	$	3
Net translation of foreign currencies, April 1,	$	(212)	$	19	$	(193)
Net translation of foreign currencies arising during the period		(39)		(1)		(40)
Net translation of foreign currencies, June 30,	$	(251)	$	18	$	(233)
Postretirement benefits liability adjustment, April 1,	$	(2,139)	$	749	$	(1,390)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		16		(6)		10
Net change due to valuation update		(4)		2		(2)
Net postretirement benefits liability adjustment arising during the period		12		(4)		8
Postretirement benefits liability adjustment, June 30,	$	(2,127)	$	745	$	(1,382)
2015
Net unrealized appreciation, securities, April 1,	$	1,083	$	(375)	$	708
Unrealized (depreciation) on securities arising during the period		(337)		112		(225)
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(13)		4		(9)
Net unrealized (depreciation), securities arising during the period		(350)		116		(234)
Net unrealized appreciation, securities, June 30,	$	733	$	(259)	$	474
Net unrealized (depreciation), derivatives, April 1,	$	(2)	$	1	$	(1)
Unrealized (depreciation) on derivatives arising during the period		(3)		-		(3)
Reclassification adjustment for losses included in shareholders' net income (other operating expenses)		12		(4)		8
Net unrealized appreciation on derivatives arising during the period		9		(4)		5
Net unrealized appreciation, derivatives, June 30,	$	7	$	(3)	$	4
Net translation of foreign currencies, April 1,	$	(180)	$	14	$	(166)
Net translation of foreign currencies arising during the period		15		3		18
Net translation of foreign currencies, June 30,	$	(165)	$	17	$	(148)
Postretirement benefits liability adjustment, April 1,	$	(2,270)	$	795	$	(1,475)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		18		(7)		11
Net change due to valuation update		12		(3)		9
Net postretirement benefits liability adjustment arising during the period		30		(10)		20
Postretirement benefits liability adjustment, June 30,	$	(2,240)	$	785	$	(1,455)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
Six Months Ended June 30,
2016
Net unrealized appreciation, securities, January 1,	$	612	$	(194)	$	418
Unrealized appreciation on securities arising during the period		512		(169)		343
Reclassification adjustment for losses included in shareholders' net income (realized investment gains)		11		(4)		7
Net unrealized appreciation, securities arising during the period		523		(173)		350
Net unrealized appreciation, securities, June 30,	$	1,135	$	(367)	$	768
Net unrealized appreciation, derivatives, January 1,	$	10	$	(3)	$	7
Unrealized (depreciation), derivatives arising during the period		(5)		1		(4)
Net unrealized appreciation, derivatives, June 30,	$	5	$	(2)	$	3
Net translation of foreign currencies, January 1,	$	(295)	$	21	$	(274)
Net translation of foreign currencies arising during the period		44		(3)		41
Net translation of foreign currencies, June 30,	$	(251)	$	18	$	(233)
Postretirement benefits liability adjustment, January 1,	$	(2,155)	$	754	$	(1,401)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		32		(11)		21
Net change due to valuation update		(4)		2		(2)
Net postretirement benefits liability adjustment arising during the period		28		(9)		19
Postretirement benefits liability adjustment, June 30,	$	(2,127)	$	745	$	(1,382)
2015
Net unrealized appreciation, securities, January 1,	$	955	$	(335)	$	620
Unrealized (depreciation) on securities arising during the period		(189)		64		(125)
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(33)		12		(21)
Net unrealized (depreciation), securities arising during the period		(222)		76		(146)
Net unrealized appreciation, securities, June 30,	$	733	$	(259)	$	474
Net unrealized (depreciation), derivatives, January 1,	$	(12)	$	4	$	(8)
Unrealized appreciation, derivatives arising during the period		7		(3)		4
Reclassification adjustment for losses included in shareholders' net income (other operating expenses)		12		(4)		8
Net unrealized appreciation, derivatives arising during the period		19		(7)		12
Net unrealized appreciation, derivatives, June 30,	$	7	$	(3)	$	4
Net translation of foreign currencies, January 1,	$	(71)	$	9	$	(62)
Net translation of foreign currencies arising during the period		(94)		8		(86)
Net translation of foreign currencies, June 30,	$	(165)	$	17	$	(148)
Postretirement benefits liability adjustment, January 1,	$	(2,286)	$	800	$	(1,486)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		34		(12)		22
Net change due to valuation update		12		(3)		9
Net postretirement benefits liability adjustment arising during the period		46		(15)		31
Postretirement benefits liability adjustment, June 30,	$	(2,240)	$	785	$	(1,455)