v3.24.3
Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Other comprehensive income (loss) before reclassifications     $ (680) $ 1,209
Amounts reclassified from accumulated OCI     (972) (1,430)
Net other comprehensive income (loss)     (1,652) (221)
Accumulated Other Comprehensive Income (Loss)        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning balance     2,300 2,766
Net other comprehensive income (loss) $ (792) $ 240 (1,652) (221)
Accumulated other comprehensive income, ending balance 648 2,545 648 2,545
Foreign Currency Translation Adjustment        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning balance     (1,337) (1,800)
Other comprehensive income (loss) before reclassifications     (329) 367
Amounts reclassified from accumulated OCI     127 0
Net other comprehensive income (loss)     (202) 367
Accumulated other comprehensive income, ending balance (1,539) (1,433) (1,539) (1,433)
Net Unrealized Gains (Losses) on Securities        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning balance     (57) (90)
Other comprehensive income (loss) before reclassifications     13 (25)
Amounts reclassified from accumulated OCI     10 7
Net other comprehensive income (loss)     23 (18)
Accumulated other comprehensive income, ending balance (34) (108) (34) (108)
Net Unrealized Gains (Losses) on Derivative Instruments        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning balance     (1,029) (1,998)
Other comprehensive income (loss) before reclassifications     (364) 867
Amounts reclassified from accumulated OCI     33 35
Net other comprehensive income (loss)     (331) 902
Accumulated other comprehensive income, ending balance (1,360) (1,096) (1,360) (1,096)
Defined Benefit Postretirement Plans        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning balance     4,723 6,654
Other comprehensive income (loss) before reclassifications     0 0
Amounts reclassified from accumulated OCI     (1,142) (1,472)
Net other comprehensive income (loss)     (1,142) (1,472)
Accumulated other comprehensive income, ending balance $ 3,581 $ 5,182 $ 3,581 $ 5,182