Leases - Future Minimum Lease Payments to be Made Under Non-Cancelable Operating Leases Along with Lease and Sublease Minimum Receipts to be Received on Owned and Leased Properties (Detail) $ in Millions	Dec. 31, 2015 USD ($)
Leases [Abstract]
Operating leases, Future Minimum Lease Payments, 2016	$ 59
Operating leases, Future Minimum Lease Payments, 2017	53
Operating leases, Future Minimum Lease Payments, 2018	51
Operating leases, Future Minimum Lease Payments, 2019	46
Operating leases, Future Minimum Lease Payments, 2020	43
Operating leases, Future Minimum Lease Payments, Thereafter	242
Operating leases, Future Minimum Lease Payments, Total	494
Operating leases, Future Minimum Lease Receipts, 2016	5
Operating leases, Future Minimum Lease Receipts, 2017	5
Operating leases, Future Minimum Lease Receipts, 2018	5
Operating leases, Future Minimum Lease Receipts, 2019	5
Operating leases, Future Minimum Lease Receipts, 2020	4
Operating leases, Future Minimum Lease Receipts, Thereafter	23
Operating leases, Future Minimum Lease Receipts, Total	$ 47