Leases - Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ (276)	$ (269)	$ (299)
Financing cash flows from finance leases	(26)	(28)	(29)
Non cash investing and financing activities
Leased assets obtained in exchange for new finance lease liabilities	51	24	30
Leased assets obtained in exchange for new operating lease liabilities	$ 232	$ 130	$ 180

Cash Paid for Amounts Included in the Measurement of Lease Liabilities

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- Definition

Non Cash Investing and Financing Information Related to Leases

+ References

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- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

+ References

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-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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