Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets	$ 716	$ 606
Contract liabilities	439	344
Contract with customer, liability, revenue recognized	308	308
Unbilled receivables	471	402
Retentions held by customers	245	204
Remaining performance obligations	3,725
Revenues	34,949	32,723	$ 29,206
Equity method investments
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	$ 221	$ 237	$ 199