Note 27: Condensed Combined Debtor-In-Possesion Financial Information (Detail) - Debtors' Statement of Comprehensive (Loss) Income (Parentheticals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Realized and unrealized losses from hedging activity, tax (in Dollars)	$ 2	$ 0	$ 0
Reclassification adjustment for hedging-related gains included in net earnings, tax (in Dollars)	1	0	1
Unrealized gain from investment, tax (in Dollars)	0	0	0
Pension and other postretirement benefit plan obligation activity, tax (in Dollars)	146	71	19
Condensed Combined Debtor In Possession Comprehensive (Loss) Income [Member]
Realized and unrealized losses from hedging activity, tax (in Dollars)	2
Reclassification adjustment for hedging-related gains included in net earnings, tax (in Dollars)	1
Unrealized gain from investment, tax (in Dollars)	0
Pension and other postretirement benefit plan obligation activity, tax (in Dollars)	$ 255