Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Long-term Purchase Commitment

The Company estimates that these commitments will be approximately $9.0 billion from 2015 through 2051 as detailed in the following table:

	(In millions)
2015	$	2,384
2016	1,258
2017	742
2018	477
2019	431
2020 and thereafter	3,723
	$	9,015