v3.26.1
Equity (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity beginning balance $ 67,997 $ 63,307 $ 67,102 $ 61,923
Tax (expense) benefit 23 (4) 41 (24)
Equity ending balance 68,116 64,206 68,116 64,206
Accumulated Other Comprehensive Loss        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity beginning balance (2,945) (3,207) (2,718) (3,755)
Other comprehensive income (loss) before reclassifications, net (359) 832 (564) 1,442
Amounts reclassified, pre-tax (28) (12) (68) (54)
Tax (expense) benefit 23 (4) 41 (24)
Equity ending balance (3,309) (2,391) (3,309) (2,391)
Foreign Currency Translation        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity beginning balance 355 (449) 492 (949)
Other comprehensive income (loss) before reclassifications, net (219) 863 (352) 1,362
Amounts reclassified, pre-tax 0 0 0 0
Tax (expense) benefit (20) 0 (24) 1
Equity ending balance 116 414 116 414
Defined Benefit Pension and Postretirement Plans        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity beginning balance (3,324) (2,745) (3,304) (2,679)
Other comprehensive income (loss) before reclassifications, net 20 (143) 17 (179)
Amounts reclassified, pre-tax (25) (38) (49) (77)
Tax (expense) benefit 6 30 13 39
Equity ending balance (3,323) (2,896) (3,323) (2,896)
Unrealized Hedging Gains (Losses)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity beginning balance 24 (13) 94 (127)
Other comprehensive income (loss) before reclassifications, net (160) 112 (229) 259
Amounts reclassified, pre-tax (3) 26 (19) 23
Tax (expense) benefit 37 (34) 52 (64)
Equity ending balance $ (102) $ 91 $ (102) $ 91