Leases - ROU Assets and Liabilities (Details) - USD ($) $ in Millions |
Jun. 30, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Assets | ||
| ROU assets (recorded within other long-term assets) | $ 1,297 | $ 1,311 |
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Other long-term assets | Other long-term assets |
| Liabilities | ||
| Short-term (recorded within accounts payable and accrued expenses) | $ 200 | $ 204 |
| Long-term (recorded within other long-term liabilities) | 1,324 | 1,334 |
| Total lease liabilities | $ 1,524 | $ 1,538 |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Accounts payable and accrued expenses | Accounts payable and accrued expenses |
| Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other long-term liabilities | Other long-term liabilities |
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- References No definition available.
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- References No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes current operating lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes noncurrent operating lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates line item in statement of financial position that includes operating lease right-of-use asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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