Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net Income Attributable to UNBC	$ 124	$ 172	$ 506	$ 649
Other Comprehensive Income, Net of Tax:
Net change in unrealized gains on hedges	21	(3)	41	(3)
Net change in unrealized gains on securities	195	54	281	96
Foreign currency translation adjustment	1	(2)	1	(1)
Net change in pension and other benefits	16	8	46	29
Total other comprehensive income	233	57	369	121
Comprehensive Income Attributable to UNBC	357	229	875	770
Comprehensive loss from noncontrolling interests	(6)	(4)	(15)	(11)
Total Comprehensive Income	$ 351	$ 225	$ 860	$ 759