Cash Flow Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] | |||
| Increase in PP&E related to increase in asset retirement obligations | $ 205 | $ 395 | $ (37) |
| Interest Paid, Net | 810 | 772 | 1,163 |
| Income Taxes Paid, Net | 2,905 | 2,976 | 1,168 |
| Payments for (Proceeds from) Short-term Investments [Abstract] | |||
| Short-term investments purchased | (4,902) | (1,953) | (6,617) |
| Short-term investments sold | 2,138 | 3,573 | 4,827 |
| Long-term investments purchased | (146) | 0 | 0 |
| Net Sales (Purchases) of Investments | 2,910 | (1,620) | 1,790 |
| Nonmonetary Transactions [Abstract] | |||
| Accounts receivable Acquired | 0 | (44) | 0 |
| Inventories Acquired | 0 | 42 | 0 |
| Investments Acquired | 0 | 15 | 0 |
| PPE Acquired | 0 | 1,907 | 0 |
| Other Long Term Assets Acquired | 0 | (9) | 0 |
| Accounts Payable | 0 | 7 | 0 |
| Accrued income and other taxes | $ 0 | $ 40 | $ 0 |
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- References No definition available.
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The increase (decrease) during the reporting period in the carrying amount of asset retirement obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of accounts receivable that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of inventory that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of assets, classified as other, acquired in a noncash or part noncash acquisition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities, classified as other, assumed in acquiring a business or in consideration for an asset received in a noncash or part noncash acquisition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of payables that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition The net cash paid (received) associated with the acquisition or disposal of all investments, including securities and other assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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