Employee Benefit Plans - Pension Plans and Retiree Health Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Defined Benefit Plans Disclosures [Line Items]
Defined benefit plan, contributions by employer	$ 31	$ 17	$ 102
Defined benefit plan, expected future employer contributions	150
Pension Benefits
Schedule of Defined Benefit Plans Disclosures [Line Items]
Defined benefit plan, contributions by employer	24	13	81
Defined benefit plan, expected future employer contributions	130
Retiree Health
Schedule of Defined Benefit Plans Disclosures [Line Items]
Defined benefit plan, contributions by employer	7	4	21
Defined benefit plan, expected future employer contributions	20
U.S. Plans | Pension Benefits
Schedule of Defined Benefit Plans Disclosures [Line Items]
Defined benefit plan, contributions by employer	18	6	53
Defined benefit plan, expected future employer contributions	100
Non-U.S. Plans | Pension Benefits
Schedule of Defined Benefit Plans Disclosures [Line Items]
Defined benefit plan, contributions by employer	6	$ 7	$ 28
Defined benefit plan, expected future employer contributions	$ 30