Derivative Financial Instruments

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

From time to time, we use derivative financial instruments, primarily interest rate swaps, to manage our exposure to fluctuations in interest rates. Our primary objective in managing interest rate risk is to decrease the volatility of our earnings and cash flows affected by changes in the underlying rates. We have floating rate long-term debt (see Note 5—Long-Term Debt and Credit Facilities). These obligations expose us to variability in interest payments due to changes in interest rates. If interest rates increase, interest expense increases. Conversely, if interest rates decrease, interest expense also decreases. We have designated our currently outstanding interest rate swap agreements as cash flow hedges. As described further below, under these hedges, we receive variable-rate amounts from a counterparty in exchange for us making fixed-rate payments over the lives of the agreements without exchange of the underlying notional amount. The change in the fair value of the interest rate swap agreements is reflected in accumulated other comprehensive income ("AOCI") and, as described below, is subsequently reclassified into earnings in the period that the hedged transaction affects earnings by virtue of qualifying as effective cash flow hedges. We do not use derivative financial instruments for speculative purposes.

As of June 30, 2021 and December 31, 2020, we evaluated the effectiveness of our hedges quantitatively and any hedges we had entered into at the time qualified as effective hedge relationships.

We may be exposed to credit-related losses in the event of non-performance by counterparties. The counterparties to any of the financial derivatives we enter into are major institutions with investment grade credit ratings. We evaluate counterparty credit risk before entering into any hedge transaction and continue to closely monitor the financial market and the risk that our counterparties will default on their obligations as part of our quarterly qualitative effectiveness evaluation.

Amounts accumulated in AOCI related to derivatives are indirectly recognized in earnings as periodic settlement payments are made throughout the term of the swaps.

The table below presents the fair value of our derivative financial instruments as well as their classification on the consolidated balance sheets at June 30, 2021 and December 31, 2020, as follows (in millions):

		June 30, 2021		December 31, 2020
Derivatives designated as	Balance Sheet Location	Fair Value
Cash flow hedging contracts	Other current and noncurrent liabilities	$	67	107

The amount of unrealized losses recognized in AOCI consists of the following (in millions):

Derivatives designated as hedging instruments	2021		2020
Cash flow hedging contracts
Three Months Ended June 30,	$	—	10
Six Months Ended June 30,	$	—	116

The amount of realized losses reclassified from AOCI to the statement of operations consists of the following

(in millions):

Derivatives designated as hedging instruments	2021		2020
Cash flow hedging contracts
Three Months Ended June 30,	$	21	16
Six Months Ended June 30,	$	41	21

Amounts currently included in AOCI will be reclassified into earnings prior to the ongoing settlements of these cash flow hedging contracts until 2022. We estimate that $67 million of net losses on the interest rate swaps (based on the estimated LIBOR curve as of June 30, 2021) will be reflected in our consolidated statements of operations within the next 12 months.