Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net earnings, including noncontrolling interests	$ 453	$ 402	$ 319
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(122)	408	161
Reclassification adjustment for realized gains included in net earnings	(144)	(138)	(68)
Reclassification adjustment for unrealized gains of subsidiaries sold	0	(18)	(1)
Total net unrealized gains (losses) on securities	(266)	252	92
Foreign currency translation adjustments	(13)	6	(1)
Pension and other postretirement plans adjustments	2	2	0
Other comprehensive income (loss), net of tax	(277)	260	91
Total comprehensive income, net of tax	176	662	410
Less: Comprehensive income (loss) attributable to noncontrolling interests	(24)	(78)	(17)
Comprehensive income attributable to shareholders	$ 200	$ 740	$ 427