Comprehensive Income/(Loss) and Shareholders' Equity - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unissued shares of common stock (in shares)		37.0
Purchases of company common stock		$ 4,000	$ 3,000	$ 3,000
Subsequent Event
Accumulated Other Comprehensive Income (Loss) [Line Items]
Purchases of company common stock	$ 2,000
Purchases of company common stock (in shares)	3.6