Acquisition-related intangible assets, net consisted of the following as of October 31, 2024 (in millions):


	Gross Carrying Amount		Accumulated Amortization		Net Book Value
Developed technology	$	473	$	(290)	$	183
Customer relationships	362		(163)		199
Backlog	15		(15)		0
Trade name	14		(13)		1
Total	$	864	$	(481)	$	383

Acquisition-related intangible assets, net consisted of the following as of January 31, 2024 (in millions):


	Gross Carrying Amount		Accumulated Amortization		Net Book Value
Developed technology	$	318	$	(256)	$	62
Customer relationships	311		(140)		171
Backlog	15		(15)		0
Trade name	13		(13)		0
Total	$	657	$	(424)	$	233

Amortization expense related to acquisition-related intangible assets was $20 million and $16 million for the three months ended October 31, 2024, and 2023, respectively, and $58 million for each of the nine month periods ended October 31, 2024, and 2023.

As of October 31, 2024, the future estimated amortization expense related to acquisition-related intangible assets was as follows (in millions):


Fiscal Period:
Remainder of 2025	$	21
2026	82
2027	57
2028	53
2029	43
Thereafter	127
Total	$	383