Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2017

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 September 30, 2017
Net unrealized appreciation, securities, July 1,	$	660	$	(224)	$	436
Unrealized (depreciation) on securities arising during the period		(5)		-		(5)
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(26)		9		(17)
Net unrealized (depreciation) on securities arising during the period		(31)		9		(22)
Net unrealized appreciation, securities, September 30,	$	629	$	(215)	$	414
Net translation of foreign currencies, July 1,	$	(249)	$	19	$	(230)
Net translation of foreign currencies arising during the period		38		(4)		34
Net translation of foreign currencies, September 30,	$	(211)	$	15	$	(196)
Postretirement benefits liability adjustment, July 1,	$	(2,080)	$	728	$	(1,352)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		16		(6)		10
Postretirement benefits liability adjustment, September 30,	$	(2,064)	$	722	$	(1,342)
Three Months Ended September 30, 2016
Net unrealized appreciation, securities, July 1,	$	1,135	$	(367)	$	768
Unrealized appreciation on securities arising during the period		94		(24)		70
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(6)		2		(4)
Net unrealized appreciation on securities arising during the period		88		(22)		66
Net unrealized appreciation, securities, September 30,	$	1,223	$	(389)	$	834
Net unrealized appreciation, derivatives, July 1,	$	5	$	(2)	$	3
Unrealized appreciation on derivatives arising during the period		2		-		2
Reclassification adjustment for (gains) included in shareholders' net income (other operating expenses)		(4)		1		(3)
Net unrealized (depreciation) on derivatives arising during the period		(2)		1		(1)
Net unrealized appreciation, derivatives, September 30,	$	3	$	(1)	$	2
Net translation of foreign currencies, July 1,	$	(251)	$	18	$	(233)
Net translation of foreign currencies arising during the period		55		-		55
Net translation of foreign currencies, September 30,	$	(196)	$	18	$	(178)
Postretirement benefits liability adjustment, July 1,	$	(2,127)	$	745	$	(1,382)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		16		(4)		12
Net change due to valuation update		(3)		-		(3)
Net postretirement benefits liability adjustment arising during the period		13		(4)		9
Postretirement benefits liability adjustment, September 30,	$	(2,114)	$	741	$	(1,373)

			Tax
			(Expense)		After-
(In millions)	Pre-Tax		Benefit		Tax
Nine Months Ended September 30, 2017
Net unrealized appreciation, securities, January 1,	$	542	$	(180)	$	362
Unrealized appreciation on securities arising during the period		163		(62)		101
Reclassification adjustment for (gains) included in shareholders' net income (realized investment gains)		(76)		27		(49)
Net unrealized appreciation on securities arising during the period		87		(35)		52
Net unrealized appreciation, securities, September 30,	$	629	$	(215)	$	414
Net unrealized appreciation, derivatives, January 1,	$	4	$	(1)	$	3
Unrealized (depreciation) on derivatives arising during the period		(1)		-		(1)
Reclassification adjustment for (gains) included in shareholders' net income (net realized investment gains)		(3)		1		(2)
Net unrealized (depreciation) on derivatives arising during the period		(4)		1		(3)
Net unrealized appreciation, derivatives, September 30,	$	-	$	-	$	-
Net translation of foreign currencies, January 1,	$	(390)	$	21	$	(369)
Net translation of foreign currencies arising during the period		179		(6)		173
Net translation of foreign currencies, September 30,	$	(211)	$	15	$	(196)
Postretirement benefits liability adjustment, January 1,	$	(2,120)	$	742	$	(1,378)
Reclassification adjustment for amortization of net losses from past
experience and prior service costs (other operating expenses)		48		(18)		30
Reclassification adjustment for settlement loss (other operating expenses)		6		(2)		4
Net change due to valuation update		2		-		2
Net postretirement benefits liability adjustment arising during the period		56		(20)		36
Postretirement benefits liability adjustment, September 30,	$	(2,064)	$	722	$	(1,342)
Nine Months Ended September 30, 2016
Net unrealized appreciation, securities, January 1,	$	612	$	(194)	$	418
Unrealized appreciation on securities arising during the period		606		(193)		413
Reclassification adjustment for losses included in shareholders' net income (realized investment gains)		5		(2)		3
Net unrealized appreciation on securities arising during the period		611		(195)		416
Net unrealized appreciation, securities, September 30,	$	1,223	$	(389)	$	834
Net unrealized appreciation, derivatives, January 1,	$	10	$	(3)	$	7
Unrealized (depreciation) on derivatives arising during the period		(3)		1		(2)
Reclassification adjustment for (gains) included in shareholders' net income (other operating expenses)		(4)		1		(3)
Net unrealized (depreciation) on derivatives arising during the period		(7)		2		(5)
Net unrealized appreciation, derivatives, September 30,	$	3	$	(1)	$	2
Net translation of foreign currencies, January 1,	$	(295)	$	21	$	(274)
Net translation of foreign currencies arising during the period		99		(3)		96
Net translation of foreign currencies, September 30,	$	(196)	$	18	$	(178)
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)		48		(15)		33
Net change due to valuation update		(7)		2		(5)
Net postretirement benefits liability adjustment arising during the period		41		(13)		28
Postretirement benefits liability adjustment, September 30,	$	(2,114)	$	741	$	(1,373)