Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Dividends Declared Per Share	$ 1.00	$ 0.88
Paid-In-Surplus [Member]
Tax Benefit, Stock-Based Employee Compensation	$ 14	$ 27
Retained Earnings [Member]
Dividends Declared Per Share	$ 1.00	$ 0.88