Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

The following table presents the allowance for doubtful accounts included in accounts receivable, net; accumulated depreciation included in property, plant and equipment, net; accumulated amortization included in intangible assets, net and accumulated amortization included in out-of-market contracts, net:



	June 30, 2017		December 31, 2016
	(In millions)
Accounts receivable allowance for doubtful accounts	$	39	$	29
Property, plant and equipment accumulated depreciation	6,180		5,711
Intangible assets accumulated amortization	1,698		1,687
Out-of-market contracts accumulated amortization	346		457

Restrictions on Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheet that sum to the total of the same such amounts shown in the statement of cash flows.



	June 30, 2017		December 31, 2016		June 30, 2016		December 31, 2015
	(In millions)
Cash and cash equivalents	$	752	$	938	$	748	$	853
Funds deposited by counterparties	19		2		1		55
Restricted cash	469		446		413		414
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows	$	1,240	$	1,386	$	1,162	$	1,322

Schedule of Change in Noncontrolling Interest

Noncontrolling Interest

The following table reflects the changes in NRG's noncontrolling interest balance:



	(In millions)
Balance as of December 31, 2016	$	2,405
Dividends paid to NRG Yield, Inc. public shareholders	(52		)
Distributions to noncontrolling interest	(39		)
Comprehensive loss attributable to noncontrolling interest	(19		)
Non-cash adjustments to noncontrolling interest	88
Contributions from noncontrolling interest	76
Sale of assets to NRG Yield, Inc.	3
Balance as of June 30, 2017	$	2,462

Redeemable Noncontrolling Interest

The following table reflects the changes in the Company's redeemable noncontrolling interest balance:



	(In millions)
Balance as of December 31, 2016	$	46
Contributions from redeemable noncontrolling interest	42
Comprehensive loss attributable to redeemable noncontrolling interest	(37		)
Balance as of June 30, 2017	$	51