Contract Costs (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Activity Related to Capitalized Contract Costs

These costs are periodically reviewed for impairment. The following table identifies the activity relating to capitalized contract costs:

In millions	December 31, 2020		Capitalized		Amortization		December 31, 2021
Capitalized contract costs	$	98	$	58	$	(45)	$	111
In millions	December 31, 2019		Capitalized		Amortization		December 31, 2020
Capitalized contract costs	$	91	$	40	$	(33)	$	98