Consolidated Statements Of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$ (1,834)	$ (1,876)	$ (1,979)
Defined benefit pension plans and retiree medical:
Amortization of actuarial loss and prior service cost	(142)	130	130
Current year change	1,577	(1,910)	(1,216)
Benefit plan modifications	0	3,345	0
Derivative financial instruments:
Change in fair value	18	(12)	190
Reclassification into earnings	34	(3)	(313)
Unrealized gain (loss) on investments
Net change in value	(1)	3	0
Other comprehensive income (loss) before tax	1,486	1,553	(1,209)
Non-cash tax provision	538	569	0
Comprehensive income (loss)	(886)	(892)	(3,188)
AA [Member]
Net income (loss)	(1,526)	(1,926)	(1,965)
Defined benefit pension plans and retiree medical:
Amortization of actuarial loss and prior service cost	(142)	130	130
Current year change	1,565	(1,910)	(1,216)
Benefit plan modifications	0	3,345	0
Derivative financial instruments:
Change in fair value	18	(12)	190
Reclassification into earnings	34	(3)	(313)
Unrealized gain (loss) on investments
Net change in value	(1)	6	(1)
Other comprehensive income (loss) before tax	1,474	1,556	(1,210)
Non-cash tax provision	538	569	0
Comprehensive income (loss)	$ (590)	$ (939)	$ (3,175)