Consolidated Statements of Shareholders' Equity Parentheticals (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income tax expense on foreign currency translation and related hedging instruments		$ 0	$ 45
Income tax benefit on foreign currency translation and related hedging instruments	11
Income tax expense on pensions			42
Income tax benefit on pensions	162	30
Income tax benefit on other postretirement benefits	11	4	14
Income tax expense on cash flow hedges			19
Income tax benefit on cash flow hedges	12
Income tax benefit on employee benefit plans	72		3
Income tax expense on employee benefit plans		$ 3