Supplemental Cash Flow Information (Details) - USD ($) $ in Millions |
3 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
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| Supplemental Cash Flow Information [Abstract] | ||
| Cash paid during the period for interest on debt and finance leases, net of amounts capitalized | $ 108 | $ 282 |
| Balance in property, plant and equipment, net funded with accounts payable and accrued liabilities | $ 509 | $ 310 |
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- Definition Future cash outflow to pay for construction in progress expenditures that have occurred. 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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- References No definition available.
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