XML 139 R125.htm IDEA: XBRL DOCUMENT v3.20.4
Share-Based Compensation And Other Compensation Arrangements (Schedule Of Stock Unit Activity) (Details)5
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 1 year 7 months 24 days
Incentive Program Performance Based Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Number of units, Outstanding at beginning of year 826,126
Number of units, Granted 290,202
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease) 293,203 [1]
Number of units, Dividends 27,299
Number of units, Forfeited (83,055)
Number of units, Distributed (732,216)
Number of units, Outstanding at end of year 621,559
Unrecognized compensation cost | $ $ 93
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 1 year 9 months 18 days
[1] Represents net incremental number of units issued at vesting based on TSR for units granted in 2017.