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Contingencies and Commitments (Unaudited) - Schedule of Charges for Royalty Assessments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loss Contingencies [Line Items]
Production and delivery	$ 2,802	$ 2,529	$ 7,497	$ 7,984
Interest expense, net	(304)	(187)	(633)	(574)
Provision for (benefit from) income taxes	387	(114)	747	79
Net loss attributable to noncontrolling interest	(35)	37	106	146
Net income (loss) attributable to common stockholders	280	$ 217	$ 776	$ (4,446)
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments, Taxes [Member]
Loss Contingencies [Line Items]
Production and delivery	34
Provision for (benefit from) income taxes	63
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments [Member]
Loss Contingencies [Line Items]
Provision for (benefit from) income taxes	2
Net loss attributable to noncontrolling interest	(171)
Net income (loss) attributable to common stockholders	188
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments [Member] \| Tax Year 2006 To September 2011 [Member]
Loss Contingencies [Line Items]
Production and delivery	176
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments [Member] \| October 2011 to Tax Year 2013 [Member]
Loss Contingencies [Line Items]
Provision for (benefit from) income taxes	127
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments [Member] \| December 2006 to Tax Year 2013 [Member]
Loss Contingencies [Line Items]
Provision for (benefit from) income taxes	(125)
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Disputed Royalty Assessments [Member] \| October 2011 to Tax Year 2013 [Member]
Loss Contingencies [Line Items]
Provision for (benefit from) income taxes	64
Cerro Verde Royalty Dispute [Member] \| Cerro Verde [Member] \| Royalty Assessments, Penalties [Member]
Loss Contingencies [Line Items]
Production and delivery	$ 6