v3.25.2
Equity Activity - Reclassifications and Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost $ 7,001 $ 6,820 $ 13,511 $ 13,539
SG&A expense 5,027 4,938 9,913 9,912
Other (income) and expense (39) (233) (204) (550)
Interest expense 510 427 965 859
Services        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 5,280 5,126 10,282 10,365
Sales        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 1,630 1,607 3,034 2,988
Financing        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 90 86 194 186
Accumulated Other Comprehensive Income/(Loss)        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Other Comprehensive Income (Loss), before Tax (959) 322 (1,525) 885
Other comprehensive income/(loss), Tax (Expense)/Benefit 493 (153) 753 (442)
Other comprehensive income/(loss) (466) 169 (772) 442
Unrealized gains/(losses) arising during the period, Net of Tax Amount     (445) 42
Reclassification/amortization, Net of Tax Amount     (328) 400
Foreign currency translation adjustments        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Other Comprehensive Income (Loss), before Tax (613) 2 (956) 57
Other comprehensive income/(loss), Tax (Expense)/Benefit 399 (68) 602 (222)
Other comprehensive income/(loss) (215) (66) (354) (165)
Unrealized gains/(losses) arising during the period, Net of Tax Amount     (354) (165)
Net Unrealized Gains/(Losses) on Available- For-Sale Securities        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Other Comprehensive Income (Loss), before Tax (5) 1 2 1
Other comprehensive income/(loss), Tax (Expense)/Benefit 1 0 (1) 0
Other comprehensive income/(loss) (4) 0 2 1
Unrealized gains/(losses) arising during the period, Before Tax Amount (5) 1 2 1
Unrealized gains/(losses) arising during the period, Tax (Expense)/Benefit 1 0 (1) 0
Unrealized gains/(losses) arising during the period, Net of Tax Amount (4) 0 2 1
Net Unrealized Gains/(Losses) on Cash Flow Hedges        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Other Comprehensive Income (Loss), before Tax (501) 61 (883) 307
Other comprehensive income/(loss), Tax (Expense)/Benefit 128 (16) 227 (79)
Other comprehensive income/(loss) (373) 45 (656) 227
Unrealized gains/(losses) arising during the period, Before Tax Amount (82) 103 (141) 279
Unrealized gains/(losses) arising during the period, Tax (Expense)/Benefit 24 (28) 40 (75)
Unrealized gains/(losses) arising during the period, Net of Tax Amount (59) 75 (101) 204
Reclassification/amortization, Net of Tax Amount     (555) 24
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Cost of services        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit (1) 3 (1) 4
Reclassification/amortization, Net of Tax Amount 3 (7) 4 (10)
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Cost of sales        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit (2) 5 1 9
Reclassification/amortization, Net of Tax Amount 4 (10) (2) (18)
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Cost of financing        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit 0 0 (1) (1)
Reclassification/amortization, Net of Tax Amount 1 1 2 2
Net Unrealized Gains/(Losses) on Cash Flow Hedges | SG&A expense        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit (1) 2 0 3
Reclassification/amortization, Net of Tax Amount 1 (5) (1) (7)
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Other (income) and expense        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit 110 5 191 (15)
Reclassification/amortization, Net of Tax Amount (327) (16) (567) 44
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Interest expense        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Tax (Expense)/Benefit (1) (2) (3) (4)
Reclassification/amortization, Net of Tax Amount 4 6 9 13
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
SG&A expense 2 (7) (2) (10)
Other (income) and expense (436) (21) (758) 58
Interest expense 6 8 12 17
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Services        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 4 (9) 5 (14)
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Sales        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 5 (15) (2) (27)
Net Unrealized Gains/(Losses) on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Financing        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Cost 1 2 2 3
Retirement-related benefit plans        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Other Comprehensive Income (Loss), before Tax 160 259 311 520
Other comprehensive income/(loss), Tax (Expense)/Benefit (35) (69) (76) (141)
Other comprehensive income/(loss) 125 190 236 379
Unrealized gains/(losses) arising during the period, Net of Tax Amount     8 2
Reclassification/amortization, Net of Tax Amount     228 377
Prior service costs/(credits)        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Unrealized gains/(losses) arising during the period, Before Tax Amount 0 0 0 0
Unrealized gains/(losses) arising during the period, Tax (Expense)/Benefit 0 0 0 0
Unrealized gains/(losses) arising during the period, Net of Tax Amount 0 0 0 0
Reclassification/amortization, Before Tax Amount (2) (2) (4) (4)
Reclassification/amortization, Tax (Expense)/Benefit 1 0 1 1
Reclassification/amortization, Net of Tax Amount (1) (1) (2) (3)
Net gains/(losses) arising during the period        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Unrealized gains/(losses) arising during the period, Before Tax Amount 0 0 0 1
Unrealized gains/(losses) arising during the period, Tax (Expense)/Benefit 8 2 8 2
Unrealized gains/(losses) arising during the period, Net of Tax Amount 8 2 8 2
Reclassification/amortization, Before Tax Amount 157 258 308 519
Reclassification/amortization, Tax (Expense)/Benefit (42) (71) (83) (143)
Reclassification/amortization, Net of Tax Amount 115 187 225 376
Curtailments and settlements        
Reclassifications and Taxes Related to Items of Other Comprehensive Income        
Reclassification/amortization, Before Tax Amount 5 2 7 4
Reclassification/amortization, Tax (Expense)/Benefit (2) (1) (2) (1)
Reclassification/amortization, Net of Tax Amount $ 3 $ 2 $ 5 $ 3