Consolidated Statements of Shareholders' Equity (unaudited) (USD $) In Millions	Total	Common Stock		Additional Paid in Capital		Accumulated Other Comprehensive Loss	Treasury Stock at Cost	Retained Earnings
Balance at Beginning of Period at Dec. 31, 2012	$ 8,258	$ 4	[1]	$ 3,302	[1]	$ (113)	$ (648)	$ 5,713
Net Income	843	0		0		0	0	843
Stock-based Compensation	59	0		59		0	0	0
Exercise of Stock Options	39	0		39		0	0	0
Tax Benefits Related to Exercise of Stock Options	15	0		15		0	0	0
Dividends	(146)	0		0		0	0	(146)
Changes in Treasury Stock, Net	(14)	0		0		0	(14)	0
Net Change in Pension and Other	10	0		0		10	0	0
Balance at End of Period at Sep. 30, 2013	9,064	4	[1]	3,415	[1]	(103)	(662)	6,410
Balance at Beginning of Period at Dec. 31, 2013	9,184	4		3,463		(117)	(659)	6,493
Net Income	811	0				0	0	811
Stock-based Compensation	67	0		67		0	0	0
Exercise of Stock Options	45	0		45		0	0	0
Tax Benefits Related to Exercise of Stock Options	18	0		18		0	0	0
Dividends	(182)	0		0		0	0	(182)
Changes in Treasury Stock, Net	(15)	0		0		0	(15)	0
Net Change in Pension and Other	10	0		0		10	0	0
Balance at End of Period at Sep. 30, 2014	$ 9,938	$ 4		$ 3,593		$ (107)	$ (674)	$ 7,122

[1] Amounts reflect impact of 2-for-1 stock split which occurred during the second quarter of 2013.