leases (Tables)

12 Months Ended

Dec. 31, 2019

leases

Schedule of income from subleasing right-of-use lease assets and lease payments

Years ended December 31 (millions)	2019		2018
Income from subleasing right-of-use lease assets
Co-location sublet revenue included in operating service revenues	$	18	$	18
Lease payments	$	400	$	280