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Guarantor Financial Statements (Unaudited) Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Cash flow from operating activities: |  |
Net cash provided by operating activities | $ 792 | $ 740
Cash flow from investing activities: |  |
Capital expenditures | (344) | (982)
Intercompany loans | 0 | 0
Dividends from (investments in) consolidated subsidiaries | 0 | 0
Asset sales and other, net | (21) | 2
Net cash provided by (used in) investing activities | (365) | (980)
Cash flow from financing activities: |  |
Proceeds from debt | 157 | 1,796
Repayments of debt | (815) | (1,442)
Intercompany loans | 0 | 0
Proceeds from Issuance of Common Stock | 0 | 32
Cash dividends paid and contributions received, net | (16) | (22)
Other, net | (5) | (17)
Net cash (used in) provided by financing activities | (679) | 347
Net (decrease) increase in cash and cash equivalents | (252) | 107
Increase (Decrease) In Cash And Cash Equivalents In Assets Held For Sale | 8 | (53)
Cash and cash equivalents at beginning of year | 4,245 | 177
Cash and cash equivalents at end of period | 4,001 | 231
Eliminations [Member] |  |
Cash flow from operating activities: |  |
Net cash provided by operating activities | 0 | 5
Cash flow from investing activities: |  |
Capital expenditures | 0 | (2)
Intercompany loans | 277 | 938
Dividends from (investments in) consolidated subsidiaries | (920) | (352)
Asset sales and other, net | 0 | 0
Net cash provided by (used in) investing activities | (643) | 584
Cash flow from financing activities: |  |
Proceeds from debt | 0 | 0
Repayments of debt | 0 | 0
Intercompany loans | (277) | (938)
Proceeds from Issuance of Common Stock |  | (42)
Cash dividends paid and contributions received, net | 880 | 355
Other, net | 40 | 36
Net cash (used in) provided by financing activities | 643 | (589)
Net (decrease) increase in cash and cash equivalents | 0 | 0
Increase (Decrease) In Cash And Cash Equivalents In Assets Held For Sale | 0 | 0
Cash and cash equivalents at beginning of year | 0 | 0
Cash and cash equivalents at end of period | 0 | 0
Reportable Legal Entities [Member] | FCX Issuer [Member] |  |
Cash flow from operating activities: |  |
Net cash provided by operating activities | (112) | (117)
Cash flow from investing activities: |  |
Capital expenditures | 0 | 0
Intercompany loans | (277) | (561)
Dividends from (investments in) consolidated subsidiaries | 894 | 358
Asset sales and other, net | 0 | 0
Net cash provided by (used in) investing activities | 617 | (203)
Cash flow from financing activities: |  |
Proceeds from debt | 0 | 1,060
Repayments of debt | (499) | (750)
Intercompany loans | 0 | 0
Proceeds from Issuance of Common Stock |  | 32
Cash dividends paid and contributions received, net | (1) | (4)
Other, net | (5) | (18)
Net cash (used in) provided by financing activities | (505) | 320
Net (decrease) increase in cash and cash equivalents | 0 | 0
Increase (Decrease) In Cash And Cash Equivalents In Assets Held For Sale | 0 | 0
Cash and cash equivalents at beginning of year | 0 | 0
Cash and cash equivalents at end of period | 0 | 0
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member] |  |
Cash flow from operating activities: |  |
Net cash provided by operating activities | (200) | (32)
Cash flow from investing activities: |  |
Capital expenditures | (10) | (244)
Intercompany loans | 0 | (377)
Dividends from (investments in) consolidated subsidiaries | 0 | (41)
Asset sales and other, net | (23) | 2
Net cash provided by (used in) investing activities | (33) | (660)
Cash flow from financing activities: |  |
Proceeds from debt | 0 | 0
Repayments of debt | 0 | 0
Intercompany loans | 236 | 716
Proceeds from Issuance of Common Stock |  | 0
Cash dividends paid and contributions received, net | 0 | 0
Other, net | (6) | (24)
Net cash (used in) provided by financing activities | 230 | 692
Net (decrease) increase in cash and cash equivalents | (3) | 0
Increase (Decrease) In Cash And Cash Equivalents In Assets Held For Sale | 0 | 0
Cash and cash equivalents at beginning of year | 3 | 0
Cash and cash equivalents at end of period | 0 | 0
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member] |  |
Cash flow from operating activities: |  |
Net cash provided by operating activities | 1,104 | 884
Cash flow from investing activities: |  |
Capital expenditures | (334) | (736)
Intercompany loans | 0 | 0
Dividends from (investments in) consolidated subsidiaries | 26 | 35
Asset sales and other, net | 2 | 0
Net cash provided by (used in) investing activities | (306) | (701)
Cash flow from financing activities: |  |
Proceeds from debt | 157 | 736
Repayments of debt | (316) | (692)
Intercompany loans | 41 | 222
Proceeds from Issuance of Common Stock |  | 42
Cash dividends paid and contributions received, net | (895) | (373)
Other, net | (34) | (11)
Net cash (used in) provided by financing activities | (1,047) | (76)
Net (decrease) increase in cash and cash equivalents | (249) | 107
Increase (Decrease) In Cash And Cash Equivalents In Assets Held For Sale | 8 | (53)
Cash and cash equivalents at beginning of year | 4,242 | 177
Cash and cash equivalents at end of period | $ 4,001 | $ 231

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