Accounting Policies and Supplemental Disclosures (Tables)

9 Months Ended

Sep. 30, 2021

The following table shows supplemental cash flow information (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,				Twelve Months Ended September 30,
	2020		2021		2020		2021		2020		2021
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest on debt	$	285	$	276	$	715	$	731	$	869	$	933
Cash paid for operating leases	1,159		1,812		3,275		5,029		4,215		6,230
Cash paid for interest on finance leases	155		121		484		407		650		535
Cash paid for interest on financing obligations	28		48		71		116		90		147
Cash paid for income taxes, net of refunds	502		750		1,293		3,354		1,481		3,774
Assets acquired under operating leases	6,115		10,447		11,870		19,561		14,346		23,908
Property and equipment acquired under finance leases	3,571		1,744		8,892		5,453		13,075		8,149
Property and equipment acquired under build-to-suit arrangements	366		1,721		1,228		3,702		1,480		4,742

The following table shows the calculation of diluted shares (in millions):


	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2021	2020	2021
Shares used in computation of basic earnings per share	501	507	500	505
Total dilutive effect of outstanding stock awards	11	8	9	9
Shares used in computation of diluted earnings per share	512	515	509	514

Other income (expense), net, is as follows (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Marketable equity securities valuation gains (losses)	$	200	$	(129)	$	404	$	(48)
Equity warrant valuation gains (losses)	300		(50)		566		1,194
Upward adjustments relating to equity investments in private companies	320		155		320		1,661
Foreign currency gains (losses)	112		(107)		(97)		(28)
Other, net	(7)		(32)		(28)		16
Total other income (expense), net	925		(163)		1,165		2,795