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Revenue - Additional Information (Detail) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Net revenue recognized from performance obligations	$ 9
Remaining performance obligations	3,867	$ 3,867
Allowance for credit losses	$ 98	98
Rig Technologies [Member]
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Net revenue recognized from performance obligations		$ 74

X

- Definition

Amount of allowance for credit loss on accounts receivable.

+ References

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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