Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Schedule of changes in accounting principles

In the following table, revenue is summarized by type and by the applicable accounting standard.

	Three Months Ended March 31,
			2022						2021
	Topic 842		Topic 606		Total		Topic 842		Topic 606		Total
Revenues:
Owned equipment rentals	$	1,797	$	—	$	1,797	$	1,405	$	—	$	1,405
Re-rent revenue	49		—		49		32		—		32
Ancillary and other rental revenues:
Delivery and pick-up	—		157		157		—		116		116
Other	124		48		172		81		33		114
Total ancillary and other rental revenues	124		205		329		81		149		230
Total equipment rentals	1,970		205		2,175		1,518		149		1,667
Sales of rental equipment	—		211		211		—		267		267
Sales of new equipment	—		45		45		—		49		49
Contractor supplies sales	—		29		29		—		24		24
Service and other revenues	—		64		64		—		50		50
Total revenues	$	1,970	$	554	$	2,524	$	1,518	$	539	$	2,057

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure

The rollforward of our allowance for doubtful accounts (in total, and associated with revenues arising from both Topic 606 and Topic 842) is shown below.

	Three Months Ended March 31, 2022		Three Months Ended March 31, 2021
Beginning balance	$	112	$	108
Charged to costs and expenses (1)	1		—
Charged to revenue (2)	8		4
Deductions and other (3)	(5)		(8)
Ending balance	$	116	$	104

_________________

(1)    Reflects bad debt expenses recognized within selling, general and administrative expenses (associated with Topic 606 revenues).

(2)    Primarily reflects doubtful accounts associated with lease revenues that were recognized as a reduction to equipment rentals revenue (primarily associated with Topic 842 revenues).

(3)    Primarily represents write-offs of accounts, net of immaterial recoveries and other activity.