Share-Based Compensation And Other Compensation Arrangements	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation And Other Compensation Arrangements	Share-Based Compensation and Other Compensation Arrangements Restricted Stock Units On February 27, 2017, we granted to our executives 523,835 restricted stock units (RSUs) as part of our long-term incentive program with a grant date fair value of $178.72 per unit. The RSUs granted under this program will vest and settle in common stock (on a one-for-one basis) on the third anniversary of the grant date. Performance-Based Restricted Stock Units On February 27, 2017, we granted to our executives 492,273 performance-based restricted stock units (PBRSUs) as part of our long-term incentive program with a grant date fair value of $190.17 per unit. Compensation expense for the award is recognized over the three-year performance period based upon the grant date fair value estimated using a Monte-Carlo simulation model. The model used the following assumptions: expected volatility of 21.37% based upon historical stock volatility, a risk-free interest rate of 1.46%, and no expected dividend yield because the units earn dividend equivalents. Performance Awards On February 27, 2017, we granted to our executives performance awards as part of our long-term incentive program with a payout based on the achievement of financial goals for the three-year period ending December 31, 2019. At March 31, 2017, the minimum payout amount is $0 and the maximum amount we could be required to pay out is $371.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.