The change in the carrying amount of goodwill for fiscal 2021 and 2020, excluding amounts classified as held for sale (see Note 6), was as follows:

	Grocery & Snacks		Refrigerated & Frozen		International			Foodservice		Total
Balance as of May 26, 2019	$	4,694.7	$	5,619.2	$	299.0		$	747.7	$	11,360.6
Purchase accounting adjustments		3.5		5.9		0.7			—		10.1
Currency translation		—		—		(9.2	)		—		(9.2	)
Balance as of May 31, 2020	$	4,698.2	$	5,625.1	$	290.5		$	747.7	$	11,361.5
Currency translation		—		—		12.0			—		12.0
Balance as of May 30, 2021	$	4,698.2	$	5,625.1	$	302.5		$	747.7	$	11,373.5

Other identifiable intangible assets, excluding amounts classified as held for sale, were as follows:

	2021				2020
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Non-amortizing intangible assets	$	3,301.2	$	—	$	3,388.7	$	—
Amortizing intangible assets		1,235.3		378.9		1,232.1		318.4
	$	4,536.5	$	378.9	$	4,620.8	$	318.4

In the first quarter of fiscal 2021, management changed its reporting of certain brands within two reporting units in our Refrigerated & Frozen segment. The total goodwill in our Refrigerated & Frozen segment remains unchanged, but we reassigned goodwill between the two reporting units. We evaluated goodwill for impairment both prior to and subsequent to the change, and there were no impairments. For the Sides, Components, Enhancers reporting unit that was impacted by the management change, based upon a quantitative impairment test, the excess fair value over the carrying value was approximately 20%, which remained relatively consistent with our prior year quantitative impairment test.

Fair value is typically estimated using a discounted cash flow analysis which requires us to estimate the future cash flows as well as to select a risk-adjusted discount rate to measure the present value of the anticipated cash flows. When determining future cash flow estimates, we consider historical results adjusted to reflect current and anticipated operating conditions. We estimate cash flows for a reporting unit over a discrete period (typically five years) and a terminal period (considering expected long-term growth rates and trends). We used a discount rate for our Sides, Components, Enhancers reporting unit of 6.25% and a terminal growth rate slightly in excess of 1%. Estimating the fair value of individual reporting units requires us to make assumptions and estimates in such areas as future economic conditions, industry-specific conditions, product pricing, and necessary capital expenditures. The use of different assumptions or estimates for future cash flows, discount rates, or terminal growth rates could produce substantially different estimates of the fair value of the reporting units.

In the fourth quarter of fiscal 2021, we performed our annual goodwill impairment assessment on all of our reporting units and found no indicators of impairment. We completed a qualitative assessment which considered, among other things, an increase in our market capitalization from our previous testing date, the current interest rate environment, and recent events which have had a positive impact on our financial results for most of our reporting units. However, we will continue to evaluate the impact of any significant changes in consumer purchasing behaviors, government restrictions, input cost inflation, or other macroeconomic conditions which could change certain assumptions that result in future impairments. While retail sales have increased due to higher than anticipated consumer demand for our products throughout the COVID-19 pandemic, our Foodservice segment has experienced a negative impact with decreased away-from-home eating occasions. We continue to believe this is a temporary decline as seen with improving trends in our Foodservice segment in the fourth quarter of fiscal 2021. As such, we have determined that there was no impairment triggering event as it was not more likely than not that the fair value of this reporting unit is less than its carrying amount.

Amortizing intangible assets, carrying a remaining weighted-average life of approximately 19 years, are principally composed of customer relationships and acquired intellectual property. For fiscal 2021, 2020, and 2019, we recognized amortization expense of $59.7 million, $59.8 million, and $49.1 million, respectively. Based on amortizing assets recognized in our Consolidated Balance Sheet as of May 30, 2021, amortization expense for the next five years is estimated to be as follows:

For our non-amortizing intangible assets, which are comprised of brands and trademarks, we use a "relief from royalty" methodology in estimating fair value. During fiscal 2021, as a result of our annual impairment test for indefinite lived intangibles, we recognized impairment charges in SG&A expenses of $90.9 million, primarily within our Grocery & Snacks and Refrigerated

& Frozen segments. Udi’s^® was the most notable brand with impairment in fiscal 2021 largely due to lower than expected sales and profit margins which resulted in a reduction to our assumed royalty rate.

During the first quarter of fiscal 2020, we recorded impairment charges totaling $19.3 million within our Refrigerated & Frozen segment and Grocery & Snacks segment for certain brands for which management changed its business strategy and that continued to have lower than expected sales and profit margins. This impairment was included within SG&A expenses.

During fiscal 2020, as a result of our annual impairment test for indefinite lived intangibles, we recognized impairment charges in SG&A expenses of $146.2 million, primarily within our Grocery & Snacks and Refrigerated & Frozen segments, largely associated with brands that were recorded at fair value in recent acquisitions. The more notable brands with impairments included Frontera^®, Gardein^®, Glutino^®, Hungry Man^®, and Udi’s^®. While most of our recently acquired brands continue to remain on track with previous assumptions, these brands have had lower than expected sales or profit margins which have led to some revisions in our original assumptions (most notably declines in our assumed royalty rates).

During fiscal 2019, as a result of our annual impairment test for indefinite lived intangibles, we recognized impairment charges in SG&A expenses of $76.5 million for our Chef Boyardee^® and Red Fork^® brands in our Grocery & Snacks segment. We also recognized impairment charges of $13.1 million for our Aylmer^® and Sundrop^® brands in our International segment.