Share-Based Incentive Compensation (details) - Grants after Period (USD $)	0 Months Ended
	Feb. 05, 2013
Stock options [Member]
Grants after period
Stock options granted, number	1,861,434
Stock options granted, exercise price (per share)	$ 78.65
Stock options granted, grant-date fair value of options granted (per share)	$ 17.09
Common stock awards [Member]
Grants after period
Other equity instruments, granted, number	1,268,572
Other equity instruments, granted, grant-date fair value (per share)	$ 78.65
Restricted and deferred stock units [Member]
Grants after period
Other equity instruments, granted, number	713,198
Performance shares [Member]
Grants after period
Other equity instruments, granted, number	555,374