Earnings Per Share (EPS) And Dividends (Dividend Payments On Common Stock) (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
DIVIDENDS PAID PER SHARE OF COMMON STOCK (in dollars per share)	$ 0.39	$ 0.37	$ 1.17	$ 1.11
Dividend Payments on Common Stock	$ 198	$ 187	$ 592	$ 561