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Share-Based Incentive Compensation (Table)
 6 Months Ended
Jun. 30, 2020
Share-based Payment Arrangement [Abstract]  
Information for fully vested stock option awards [Table Text Block]
The following information relates to fully vested stock option awards at June 30, 2020:
 
                                           Stock OptionsNumberWeighted
Average
Exercise
Price		Weighted
Average
Contractual
Life
Remaining		Aggregate
Intrinsic
Value
($ in millions)
Vested at end of period (1)
7,488,449  $114.26  5.8 years$56  
Exercisable at end of period5,167,407  $106.08  4.5 years$56  
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(1)Represents awards for which the requisite service has been rendered, including those that are retirement eligible.