Equity (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Schedule of changes in accumulated other comprehensive loss

Changes in accumulated other comprehensive loss by component, net of tax, were as follows (in millions):

	Three Months Ended March 31,
	2021								2020
	Foreign Currency Translation Adjustment		Defined Benefit Plans Items		Gains (Losses) on Cash Flow Hedges		Total		Foreign Currency Translation Adjustment		Defined Benefit Plans Items		Gains (Losses) on Cash Flow Hedges		Total
Balance as of beginning of period	$	(515)	$	(737)	$	(2)	$	(1,254)	$	(676)	$	(672)	$	(3)	$	(1,351)
Other comprehensive income (loss) before reclassifications	76		1		(5)		72		(606)		—		21		(585)
Amounts reclassified from accumulated other comprehensive loss	—		8		9		17		—		9		(10)		(1)
Other comprehensive income (loss)	76		9		4		89		(606)		9		11		(586)
Balance as of end of period	$	(439)	$	(728)	$	2	$	(1,165)	$	(1,282)	$	(663)	$	8	$	(1,937)