Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings, including noncontrolling interests	$ 149	$ 83	$ 174	$ 190
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(214)	130	(145)	267
Reclassification adjustment for realized gains included in net earnings	(1)	(8)	(13)	(20)
Total net unrealized gains (losses) on securities	(215)	122	(158)	247
Net unrealized gains (losses) on cash flow hedges	(1)	0	0	0
Foreign currency translation adjustments	0	2	(8)	(3)
Other comprehensive income (loss), net of tax	(216)	124	(166)	244
Total comprehensive income (loss), net of tax	(67)	207	8	434
Less: Comprehensive income (loss) attributable to noncontrolling interests	5	(21)	12	(14)
Comprehensive income (loss) attributable to shareholders	$ (72)	$ 228	$ (4)	$ 448