Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders' Equity Note [Abstract]

Schedule of Treasury Stock

	Nine Months Ended September 30,				Total From February 2008 Through September 30, 2021
	2021		2020
Shares repurchased	5,332,727		2,770,321		68,100,778
Average purchase price per share	$	150.02	$	94.44	$	82.27
Shares repurchased (in $ millions)	$	800	$	261	$	5,603
Aggregate Board of Directors repurchase authorizations during the period (in $ millions)	$	1,000	$	500	$	6,866

Schedule of Components of Other Comprehensive Income (Loss), Net

	Three Months Ended September 30,
	2021			2020
	Gross Amount	Income Tax (Provision) Benefit	Net Amount	Gross Amount	Income Tax (Provision) Benefit	Net Amount
	(In $ millions)
Foreign currency translation gain (loss)	(6)	(9)	(15)	(10)	7	(3)
Gain (loss) on cash flow hedges	1	(16)	(15)	6	(1)	5
Total	(5)	(25)	(30)	(4)	6	2

	Nine Months Ended September 30,
	2021			2020
	Gross Amount	Income Tax (Provision) Benefit	Net Amount	Gross Amount	Income Tax (Provision) Benefit	Net Amount
	(In $ millions)
Foreign currency translation gain (loss)	3	(15)	(12)	(10)	(1)	(11)
Gain (loss) on cash flow hedges	41	(25)	16	(44)	11	(33)
Pension and postretirement benefits gain (loss)	(4)	—	(4)	—	—	—
Total	40	(40)	—	(54)	10	(44)

Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net

Adjustments to Accumulated other comprehensive income (loss), net, are as follows:

	Foreign Currency Translation Gain (Loss)	Gain (Loss) on Cash Flow Hedges (Note 14)	Pension and Postretirement Benefits Gain (Loss) (Note 9)	Accumulated Other Comprehensive Income (Loss), Net
	(In $ millions)
As of December 31, 2020	(260)	(56)	(12)	(328)
Other comprehensive income (loss) before reclassifications	3	43	(4)	42
Amounts reclassified from accumulated other comprehensive income (loss)	—	(2)	—	(2)
Income tax (provision) benefit	(15)	(25)	—	(40)
As of September 30, 2021	(272)	(40)	(16)	(328)