Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total debt	[1]	$ 21,042	$ 21,995
Less: unamortized debt issuance costs		(523)	(543)
Total debt, net of unamortized debt issuance costs		20,519	21,452
Less—current portion		(1,643)	(1,720)
Long-term portion		$ 18,876	$ 19,732
Weighted average interest rate		5.75%	6.06%
Total fixed rate debt
Debt Instrument [Line Items]
Long-term debt		$ 16,468	$ 16,618
Unsecured senior notes
Debt Instrument [Line Items]
Long-term debt		7,898	7,899
Secured senior notes
Debt Instrument [Line Items]
Long-term debt		1,000	1,000
Unsecured term loans
Debt Instrument [Line Items]
Long-term debt		6,420	6,569
Convertible notes
Debt Instrument [Line Items]
Long-term debt		1,150	1,150
Total variable rate debt
Debt Instrument [Line Items]
Long-term debt		4,211	5,008
Unsecured revolving credit facilities
Debt Instrument [Line Items]
Long-term debt	[2]	$ 304	899
Unsecured revolving credit facilities | Unsecured Revolving Credit Facility Due 2024
Debt Instrument [Line Items]
Facility fee		0.17%
USD unsecured term loan
Debt Instrument [Line Items]
Long-term debt		$ 3,555	3,666
Euro unsecured term loan
Debt Instrument [Line Items]
Long-term debt		352	443
Finance lease liabilities
Debt Instrument [Line Items]
Long-term debt		$ 363	$ 369
Term SOFR plus | Unsecured revolving credit facilities | Unsecured Revolving Credit Facility Due 2024
Debt Instrument [Line Items]
Credit adjustment spread		0.10%
Margin on floating rate base (as a percent)		1.33%
Minimum | Unsecured senior notes
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	3.70%
Minimum | Secured senior notes
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	8.25%
Minimum | Unsecured term loans
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	1.28%
Minimum | Convertible notes
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	6.00%
Minimum | Unsecured revolving credit facilities
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[2],[3]	6.76%
Minimum | USD unsecured term loan
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[3]	6.05%
Minimum | Euro unsecured term loan
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[3]	5.00%
Maximum | Unsecured senior notes
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	9.25%
Maximum | Unsecured term loans
Debt Instrument [Line Items]
Long term debt, stated interest rate (as a percent)	[3]	5.89%
Maximum | Unsecured revolving credit facilities
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[2],[3]	7.48%
Maximum | Unsecured revolving credit facilities | Unsecured Revolving Credit Facility Due 2024
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)		6.76%
Maximum | USD unsecured term loan
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[3]	9.95%
Maximum | Euro unsecured term loan
Debt Instrument [Line Items]
Long term debt, current interest rate (as a percent)	[3]	6.14%

[1] At March 31, 2024 and December 31, 2023, the weighted average interest rate for total debt was 5.75% and 6.06%, respectively

[2] Advances under our unsecured revolving credit facilities accrue interest at Term SOFR plus a 0.10% credit adjustment spread plus an interest rate margin primarily at 1.33%. Based on applicable Term SOFR rates, as of March 31, 2024, the maximum interest rate under the unsecured credit facilities was 6.76%. We also pay a facility fee primarily at 0.17% of the total commitments under such facility.

[3] Interest rates based on outstanding loan balance as of March 31, 2024, and for variable rate debt include either EURIBOR or Term SOFR plus the applicable margin.