Consolidated Statement Of Changes In Equity (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Stockholders' Equity [Abstract]
Dividends (in usd per share)	$ 0.77	$ 0.70	$ 3.06	$ 1.80