Exit and Implementation Costs (Movement in Exit and Implementation Costs) (Details) - Initiative [Member] - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended | 21 Months Ended |
|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2026 |
|
| Restructuring Reserve [Roll Forward] | |||
| Restructuring reserve, beginning of period | $ 34 | $ 57 | |
| Restructuring and Related Cost, Incurred Cost | 35 | 56 | |
| Payments for Restructuring | (24) | (79) | $ (114) |
| Restructuring reserve, end of period | 45 | 34 | 45 |
| Exit Costs [Member] | |||
| Restructuring Reserve [Roll Forward] | |||
| Restructuring reserve, beginning of period | 25 | 35 | |
| Restructuring and Related Cost, Incurred Cost | 21 | 8 | |
| Payments for Restructuring | (10) | (18) | (28) |
| Restructuring reserve, end of period | 36 | 25 | 36 |
| Implementation Costs [Member] | |||
| Restructuring Reserve [Roll Forward] | |||
| Restructuring reserve, beginning of period | 9 | 22 | |
| Restructuring and Related Cost, Incurred Cost | 14 | 48 | |
| Payments for Restructuring | (14) | (61) | (86) |
| Restructuring reserve, end of period | $ 9 | $ 9 | $ 9 |