v3.20.4
Share-Based Payments - Summary of Data Related to Share-based Payment Arrangement Activity (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cash received upon exercise $ 425 $ 394 $ 1,259
Compensation cost recognized, pre-tax $ 780 $ 718 $ 949
Total Shareholder Return Units (TSRUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted, weighted-average grant-date fair value per share (in dollars per share) [2] $ 6.22 [1] $ 8.52 $ 7.42
Units converted, aggregate intrinsic value $ 84 $ 175 $ 151
Compensation cost recognized, pre-tax [3] 287 294 302
Total compensation cost related to nonvested awards not yet recognized, pre-tax $ 224 $ 229 $ 246
Weighted-average period over which cost is expected to be recognized (years) 1 year 7 months 6 days 1 year 7 months 6 days 1 year 7 months 6 days
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted, weighted-average grant-date fair value per share (in dollars per share) [1] $ 34.22    
Total fair value of shares vested [2] $ 334 $ 454 $ 146
Compensation cost recognized, pre-tax [3] 272 275 286
Total compensation cost related to nonvested awards not yet recognized, pre-tax $ 228 $ 241 $ 256
Weighted-average period over which cost is expected to be recognized (years) 1 year 8 months 12 days 1 year 8 months 12 days 1 year 8 months 12 days
Portfolio Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of shares vested [2] $ 119 $ 136 $ 169
Units converted, aggregate intrinsic value 224 245 194
Compensation cost recognized, pre-tax [3] 180 114 276
Total compensation cost related to nonvested awards not yet recognized, pre-tax $ 104 $ 87 $ 102
Weighted-average period over which cost is expected to be recognized (years) 1 year 9 months 18 days 1 year 9 months 18 days 1 year 9 months 18 days
Performance Share Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of shares vested [2] $ 25 $ 64 $ 4
Compensation cost recognized, pre-tax [3] 31 28 62
Total compensation cost related to nonvested awards not yet recognized, pre-tax $ 32 $ 34 $ 41
Weighted-average period over which cost is expected to be recognized (years) 1 year 10 months 24 days 1 year 9 months 18 days 1 year 9 months 18 days
Share-based Payment Arrangement, Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of shares vested (in dollars per share) [2] $ 3.56 $ 5.98 $ 5.06
Aggregate intrinsic value on exercise $ 293 $ 261 $ 625
Cash received upon exercise 425 394 1,259
Tax benefits realized from exercise 55 47 115
Compensation cost recognized, pre-tax [3] 6 7 12
Total compensation cost related to nonvested awards not yet recognized, pre-tax $ 4 $ 5 $ 5
Weighted-average period over which cost is expected to be recognized (years) 1 year 8 months 12 days 1 year 7 months 6 days 1 year 8 months 12 days
[1] Activity prior to the Upjohn Business spin-off has not been adjusted.
[2] Weighted-average GDFV per TSRUs and stock options.
[3] TSRU includes expense for PTSRUs, which is not significant for all years presented