Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain]
Management Stock Ownership Program (MSOP), Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Grant Date [Domain]
Share-based Compensation Arrangements by Share-based Payment Award, Grant Type [Domain]
Annual [Member]Progressive (Reload) [Member]
200720062005200720062005
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]Share-based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price84.7987.2376.8787.1280.4481.19
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate4.6%5%4%4.5%3.7%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate2.1%2%2%2.1%2%2%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate20%20%23.5%18.4%20.1%20.9%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term5.255.255.252.803.253.33
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Black-Scholes Fair Value18.1219.8118.2813.2612.5313.18