Stock-Based Compensation (Details 1) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assumptions used in valuing the options granted
Weighted-average grant-date fair value per option (in usd per share)	$ 14.46		$ 10.61
Stock-Based Compensation
Stock option expense	$ 13	$ 10	$ 19
Restricted stock and unit awards expense	86	83	58
Total stock-based compensation expense	99	93	77
Tax benefit	38	36	29
Minimum Range [Member]
Assumptions used in valuing the options granted
Risk-free average interest rate	0.10%		0.20%
Dividend yield	2.09%		2.50%
Volatility	29.00%		21.00%
Expected life	6 years 1 month 6 days		6 years 1 month 6 days
Maximum Range [Member]
Assumptions used in valuing the options granted
Risk-free average interest rate	2.90%		3.50%
Dividend yield	2.07%		3.00%
Volatility	45.00%		51.00%
Expected life	6 years 2 months 12 days		6 years 2 months 12 days
Group of Individuals Transferred to MHE [Member]
Stock-Based Compensation
Total stock-based compensation expense		$ 5	$ 4