v3.26.1
Equity (Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance $ 66,632 $ 60,305 $ 66,479 $ 60,460
Net other comprehensive income (loss) (14) 44 (39) 56
Ending balance 68,095 60,883 68,095 60,883
Net Unrealized Gains (Losses) on Cash Flow Hedges        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance 19 23 19 23
Other comprehensive income (loss), before reclassifications 0 0 0 0
Amounts reclassified from AOCI 1 1 1 1
Net other comprehensive income (loss) 1 1 1 1
Ending balance 20 24 20 24
Net Unrealized Gains (Losses) on Available for Sale Securities        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (17) (25) 0 (37)
Other comprehensive income (loss), before reclassifications (5) 9 (23) 18
Amounts reclassified from AOCI 2 1 3 4
Net other comprehensive income (loss) (3) 10 (20) 22
Ending balance (20) (15) (20) (15)
Defined Benefit Pension and Other Benefits Plans        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance 33 (19) 33 (19)
Other comprehensive income (loss), before reclassifications 0 0 0 0
Amounts reclassified from AOCI 0 0 0 0
Net other comprehensive income (loss) 0 0 0 0
Ending balance 33 (19) 33 (19)
Net Unrealized Gains (Losses) on Foreign Currency Translation        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (80) (101) (72) (101)
Other comprehensive income (loss), before reclassifications (12) 33 (20) 33
Amounts reclassified from AOCI 0 0 0 0
Net other comprehensive income (loss) (12) 33 (20) 33
Ending balance (92) (68) (92) (68)
Other Comprehensive Income (Loss) Related to Equity Method Investees        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance 11 8 11 8
Other comprehensive income (loss), before reclassifications 0 0 0 0
Amounts reclassified from AOCI 0 0 0 0
Net other comprehensive income (loss) 0 0 0 0
Ending balance 11 8 11 8
Total        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (34) (114) (9) (126)
Other comprehensive income (loss), before reclassifications (17) 42 (43) 51
Amounts reclassified from AOCI 3 2 4 5
Net other comprehensive income (loss) (14) 44 (39) 56
Ending balance $ (48) $ (70) $ (48) $ (70)