Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2011

Comprehensive Income or Shareholders' Equity [Abstract]

Components of other comprehensive income or loss


	Years Ended December 31
	2011									2010									2009
	Before			Income						Before			Income						Before			Income
	Tax			Tax			Net			Tax			Tax			Net			Tax			Tax			Net
	(in millions)

Unrealized holding gains arising during the year	$	1,029		$	359		$	670		$	230		$	81		$	149		$	1,930		$	675		$	1,255
Unrealized other-than-temporary impairment losses arising during the year		(1	)		—			(1	)		(3	)		(1	)		(2	)		(14	)		(5	)		(9	)
Reclassification adjustment for realized gains included in net income		81			28			53			110			39			71			44			15			29

Net unrealized gains recognized in other comprehensive income or loss		947			331			616			117			41			76			1,872			655			1,217
Foreign currency translation gains (losses)		6			2			4			(28	)		(10	)		(18	)		262			92			170
Change in postretirement benefit costs not yet recognized in net income		(329	)		(114	)		(215	)		20			8			12			134			36			98

Total other comprehensive income	$	624		$	219		$	405		$	109		$	39		$	70		$	2,268		$	783		$	1,485

- Definition

Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

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