Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements of Comprehensive Income (Loss)
Net earnings (loss)	$ 1,305	$ 724	$ 227
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	(6)	3	73
Net actuarial gain (loss) and prior service cost	(147)	105	137
Unrealized Gain (Loss) on securities	0	2	1
Total Other Comprehensive Income (Loss), net of tax	(153)	110	211
Total Comprehensive Income (Loss)	$ 1,152	$ 834	$ 438