Condensed Consolidated Statements Of Equity (Parenthetical) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Stockholders' Equity [Abstract]
Other Comprehensive Income, tax, portion attributable to parent	$ (81)	$ (172)
Common Stock, Dividends, Per Share, Declared	$ 3.42	$ 2.84