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	639	0		0		0	0	639
Stock-based Compensation	38	0		38		0	0	0
Exercise of Stock Options	31	0		31		0	0	0
Tax Benefits Related to Exercise of Stock Options	12	0		12		0	0	0
Dividends	(96)	0		0		0	0	(96)
Changes in Treasury Stock, Net	(14)	0		0		0	(14)	0
Net Change in Pension and Other	7	0		0		7	0	0
Balance at End of Period at Jun. 30, 2013	8,875	4	[1]	3,383	[1]	(106)	(662)	6,256
Balance at Beginning of Period at Dec. 31, 2013	9,184	4		3,463		(117)	(659)	6,493
Net Income	392	0		0		0	0	392
Stock-based Compensation	45	0		45		0	0	0
Exercise of Stock Options	41	0		41		0	0	0
Tax Benefits Related to Exercise of Stock Options	17	0		17		0	0	0
Dividends	(116)	0		0		0	0	(116)
Changes in Treasury Stock, Net	(15)	0		0		0	(15)	0
Net Change in Pension and Other	6	0		0		6	0	0
Balance at End of Period at Jun. 30, 2014	$ 9,554	$ 4		$ 3,566		$ (111)	$ (674)	$ 6,769

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