Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2011

Comprehensive Income (Tables) [Abstract]

Schedule of Comprehensive Income (Loss) [Table Text Block]

The components of total comprehensive income were as follows:

(In Millions)	2011		2010		2009
Net income	$	12,942	$	11,464	$	4,369
Other comprehensive income (loss)		(1,114)		(60)		786
Total comprehensive income	$	11,828	$	11,404	$	5,155

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of accumulated other comprehensive income (loss), net of tax, were as follows:

(In Millions)	2011		2010
Accumulated net unrealized holding gain (loss) on available-for-sale investments	$	231	$	401
Accumulated net deferred tax asset valuation allowance		104		203
Accumulated net unrealized holding gain on derivatives		8		127
Accumulated net prior service costs		(32)		(36)
Accumulated net actuarial losses		(950)		(362)
Accumulated net foreign currency translation adjustment		(142)		—
Total accumulated other comprehensive income (loss)	$	(781)	$	333

Components Of Other Comprehensive Income (Loss) [Table Text Block]

The components of other comprehensive income (loss) and related tax effects were as follows:

		2011						2010						2009
		Before				Net of		Before				Net of		Before				Net of
(In Millions)		Tax		Tax		Tax		Tax		Tax		Tax		Tax		Tax		Tax
Change in unrealized holding
	gain (loss) on investments	$	35	$	(13)	$	22	$	311	$	(111)	$	200	$	578	$	(210)	$	368
Less: adjustment for (gain) loss on
	investments included in net income		(299)		107		(192)		(94)		34		(60)		50		(18)		32
Change in deferred tax asset
	valuation allowance		—		—		—		—		72		72		—		152		152
Less: adjustment for (gain) loss on
	deferred tax asset valuation
	allowance included in net income		—		(99)		(99)		—		(15)		(15)		—		(6)		(6)
Change in unrealized holding
	gain (loss) on derivatives		20		(16)		4		73		(23)		50		75		(4)		71
Less: adjustment for amortization
	of (gain) loss on derivatives		(161)		38		(123)		(80)		17		(63)		22		(1)		21
Change in prior service costs			—		—		—		(67)		24		(43)		21		(7)		14
Less: adjustment for amortization
	of prior service costs		7		(3)		4		7		(3)		4		(1)		—		(1)
Change in actuarial loss			(900)		284		(616)		(300)		81		(219)		132		(15)		117
Less: adjustment for amortization
	of actuarial loss		43		(15)		28		22		(8)		14		26		(8)		18
Change in net foreign currency
	translation adjustment		(155)		13		(142)		—		—		—		—		—		—
Total other comprehensive income
	(loss)	$	(1,410)	$	296	$	(1,114)	$	(128)	$	68	$	(60)	$	903	$	(117)	$	786