Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common equities	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock
Balance (in shares) at Dec. 31, 2013		163.1
Balance at Dec. 31, 2013	$ 6,070	$ 397	$ 1,191	$ 4,268	$ 1,504	$ (1,290)
Net Income	358			358
Other comprehensive income, net	154				154
Dividends declared	(217)			(217)
Stock-based awards exercised and vested		$ 0
Treasury Stock, Shares, Acquired		(0.5)
Purchases	(21)					(21)
Stock Issued During Period, Shares, Other		0.8
Stockholders' Equity, Other	32		14			18
Balance (in shares) at Sep. 30, 2014		163.4
Balance at Sep. 30, 2014	$ 6,376	$ 397	1,205	4,409	1,658	(1,293)
Balance (in shares) at Dec. 31, 2014	198.3	163.7
Balance at Dec. 31, 2014	$ 6,573	$ 397	1,214	4,505	1,744	(1,287)
Net Income	478			478
Other comprehensive income, net	(464)				(464)
Dividends declared	(227)			(227)
Stock-based awards exercised and vested		$ 0
Treasury Stock, Shares, Acquired		(0.8)
Purchases	(41)					(41)
Stock Issued During Period, Shares, Other		0.9
Stockholders' Equity, Other	$ 31		9			22
Balance (in shares) at Sep. 30, 2015	198.3	163.8
Balance at Sep. 30, 2015	$ 6,350	$ 397	$ 1,223	$ 4,756	$ 1,280	$ (1,306)